JP7317771B2 - washing machine - Google Patents

Description

The present invention relates to washing machines.

As a technology related to a washing machine, Patent Document 1 discloses a rotatable washing tub, a driving device for rotating the washing tub, and a hot air supply device for supplying hot air into the washing tub. A washing machine is listed. In this washing machine, laundry is placed in the washing tub, and while the laundry is not supplied with water or humidified, while the washing tub is rotated, the temperature below the denaturation temperature of the protein is supplied to the washing tub by the warm air supply device. After that, hot air is supplied to the washing tub to heat the laundry, and then water is supplied to the washing tub to wash the laundry.

JP 2008-259627 A

In order to accelerate the removal of stains from the laundry, the laundry may be washed with a liquid laundry detergent or bleach (hereinafter collectively referred to as a liquid stain remover) pre-adhered to the stained portion. The washing tub rotates while the laundry to which the stain remover is adhered is stored in the washing tub, but at this time, the stain remover moves into the washing tub, and stain removal may not be sufficiently performed.
The problem to be solved by the present invention is to provide a washing machine capable of sufficiently removing stains.

The present invention comprises a washing tub in which laundry is stored, a rotation mechanism for rotating the washing tub, and a washing machine that, after starting operation of the washing machine, at least before rotating the washing tub and before pouring water into the washing tub. a control device comprising a volatilization promoting unit that performs a volatilization promoting step of accelerating the volatilization of the solvent in the stain remover from the liquid adhered to the object to reduce the water content in the stain remover , wherein the volatilization promoting step is and a standing step of standing still for 30 seconds or more and 3 minutes or less before the washing tub is rotated, and the washing machine is characterized in that it is performed before the sensing step of measuring the mass of the laundry.

ADVANTAGE OF THE INVENTION According to this invention, the washing machine which can fully remove dirt can be provided.

It is a perspective view of a washing machine of a 1st embodiment. It is an internal structural diagram of the washing machine of 1st Embodiment. 1 is a block diagram of a washing machine according to a first embodiment; FIG. 4 is a flow chart during operation performed in the washing machine of the first embodiment. 4 is a time chart regarding the rotation speed of the washing tub in the volatilization promoting process; It is a time chart which expands and shows the A section of FIG. It is a time chart of each mechanism in a volatilization promotion process. It is a time chart of each mechanism in the volatilization promotion process which the washing machine of 2nd Embodiment performs. It is a time chart of each mechanism in the volatilization promotion process which the washing machine of 3rd Embodiment performs. It is a time chart of each mechanism in the volatilization promotion process which the washing machine of 4th Embodiment performs.

Hereinafter, modes for carrying out the present invention (referred to as embodiments) will be described with reference to the drawings. However, the present invention is not limited to the following embodiments, and for example, different embodiments can be combined or arbitrarily modified within a range that does not significantly impair the effects of the present invention. Also, the same members are denoted by the same reference numerals, and overlapping descriptions are omitted. Furthermore, those having the same function shall have the same name. The contents of the drawings are only schematic, and for convenience of illustration, the actual configuration may be changed within a range that does not significantly impair the effects of the present invention.

FIG. 1 is a perspective view of washing machine 100 of the first embodiment. An outer frame 2 made of a combination of steel plates and resin moldings is provided on the upper portion and left and right side surfaces of the base 1 . The front side of the outer frame 2 is provided with a door 3 for loading and unloading laundry 30 (FIG. 2) and a front cover 22 . A housing 19 that supports an outer tub 20 ( FIG. 2 ) that rotatably encloses a washing tub 29 ( FIG. 2 ) is composed of a base 1 and an outer frame 2 . A drainage hose hook 10 for fixing the drainage hose 9 and a handle 71 for transportation are provided on the right side. A rear cover 23 is provided on the rear side.

An operation panel 55 (an example of an operation unit) for the user to select an operation process is provided on the front upper portion of the washing machine 100 . Operation panel 55 includes, for example, an input unit such as buttons, a display unit, and the like, and receives execution of an operation mode of washing machine 100 (including volatilization promotion step S1 (FIG. 4) described later). By operating the operation panel 55, the volatilization promotion step S1 can be executed.

FIG. 2 is an internal structural diagram of the washing machine 100 of the first embodiment. The circulating air 12, cooling water supply pipe 47, and cooling water 48 will be described later with reference to FIG. An outer tank 20 serving as a water receiving tank is provided inside the outer frame 2 . The outer tub 20 is supported by a lower suspension 21 . Inside the outer tub 20, the washing machine 100 is provided with a washing tub 29 (inner tub, rotating drum) in which the laundry 30 is accommodated. Inside the washing tub 29, the door 3 is opened and the laundry 30 to which a liquid stain remover is applied is placed. A fluid balancer 31 is provided to reduce vibrations due to balance.

A vibration sensor 70 is provided at the bottom of the outer tub 20 to detect vibration caused by unbalanced laundry 30 . A plurality of lifters 33 for lifting up the laundry 30 are provided inside the washing tub 29 . The washing tub 29 is directly connected to a motor 36 (rotating mechanism) that rotates the washing tub 29 via a shaft 35 connected to a metal flange 34 . The motor 36 is inverter controlled. A metal flange 34 is provided on the bottom surface (back side wall surface) of the washing tub 29 .

In this specification, the flat portion of the washing tub 29 located on the far side in the rotation axis direction when viewed from the front side of the washing machine 100 and having a substantially circular outer shape is referred to as a bottom surface 29a. A ring-shaped wall portion formed on the front side in the rotation axis direction (that is, on the front side) is called a side wall (side surface) 29b. Regarding the outer tub 20, similarly to the washing tub 29, the plate-like portion located on the far side in the axial direction of the shaft 35 when viewed from the front side of the washing machine 100 and having a substantially circular outer shape is referred to as a bottom surface 20a. An annular wall surface portion formed axially forward (that is, on the front side) of the shaft 35 from the outer peripheral portion of the shaft 20a is called a side wall (side surface) 20b.

The opening of the outer tub 20 is provided with a packing 38 made of an elastic material such as rubber. The packing 38 has a role of maintaining watertightness between the inside of the outer tub 20 and the door 3 . This reduces water leakage during washing, rinsing and dehydration. The packing 38 is also called door bellows. The washing tub 29 has a large number of small holes (not shown) for centrifugal dehydration and ventilation on the side wall 29b. A drain port 37 opened at the lower portion of the side wall 20b of the outer tank 20 is connected to the drain hose 9 via the drain valve 8 . The drain hose 9 is inserted into the drain port 39 .

The washing machine 100 includes a drying device 6 that dries the laundry 30 by heating the laundry 30 . The drying device 6 includes a water-cooled dehumidifying duct 5 , a blower 61 and a heater 62 . The drying device 6 is fixed to the outer frame 2 apart from the outer tub 20 . The blower 61 is provided in the washing machine 100 and includes, for example, a fan and an inverter-controlled motor (not shown), and blows air to the washing tub 29 . The heater 62 is provided in the washing machine 100 and heats the laundry 30 by heating the air supplied to the washing tub 29 . Washing machine 100 preferably includes both blower 61 and heater 62, but may include only one of them.

The water-cooling/dehumidifying duct 5 and the ventilation port 32 are connected substantially horizontally via the flexible bellows 4 . The outlet of the heater 62 is connected to the air passage 40 and connected to the blow nozzle 11 via the bellows 7 . The blow nozzle 11 is arranged between the uppermost surface and the center of the outer tub 20 in the radial direction and in front of the center of the outer tub 20 in the axial direction of the shaft 35 , and vibrates together with the outer tub 20 . Since the air duct 40 is fixed together with the heater 62 , the vibration of the outer tub 20 is absorbed by connecting the flexible bellows 7 substantially vertically to the outer tub 20 .

Washing machine 100 includes temperature sensor 13 that measures the internal temperature of washing tub 29 by measuring the temperature of the air drawn out from washing tub 29 . The temperature sensor 13 is provided upstream of the drying device 6 in the air flow, and the air whose temperature has been measured is returned to the washing tub 29 after passing through the drying device 6 .

FIG. 3 is a block diagram of the washing machine 100 of the first embodiment. The washing machine 100 is provided with a control device 50 , and the operation of the washing machine 100 is performed according to the operation content by inputting the operation content of the user using the operation panel 55 to the control device 50 . The contents of the operation here are, for example, selection of the operation mode of the washing machine 100 and the like. The control device 50 includes a washing/drying section 51 and a volatilization promoting section 52 .

FIG. 4 is a flow chart during operation performed in the washing machine 100 of the first embodiment. A detailed description of FIG. 4 will be provided later, and the description of FIG. 3 will continue with brief reference to FIG.

The washing/drying section 51 performs the washing/drying step S<b>2 of the laundry 30 . The washing and drying process S2 includes a sensing process S21 (washing process) for measuring the mass of the laundry 30 accommodated in the washing tub 29, a washing process S22 (washing process) for the laundry 30, and rinsing. It includes step S23 (washing step), dehydration step S24 (washing step), and drying step S25. The washing/drying step S2 is performed, for example, by controlling the rotation of the motor 36 and controlling the water supply to the washing tub 29 by controlling an electromagnetic valve (not shown). Among these, the drying step S25 is performed by supplying warm air to the washing tub 29 under the control of the blower 61 and the heater 62, for example.

The volatilization promoting unit 52 in FIG. 3 performs a volatilization promoting step S1 ( Figure 4) is performed. The volatilization promotion step S1 is performed, for example, by controlling the rotation of the motor 36 and blowing air to the washing tub 29 by controlling the blower 61 .

Starting the operation of the washing machine 100 means that the operation of the washing machine 100 is started, triggered by a user's operation on the operation panel 55 (for example, pressing the "volatilization promotion process start button"). Therefore, the user puts the laundry 30 to which the liquid stain remover is attached into the washing tub 29, closes the door 3, and then operates the operation panel 55 to perform the volatilization promotion step S1. In addition, it is also possible to perform only the washing/drying step S2 without performing the volatilization promoting step S1 according to the user's selection. The stain remover removes stains attached to the laundry 30 by washing, and includes, for example, laundry detergent, bleach, and the like.

For example, in order to remove stains such as oil stains and sebum stains, the user may apply a liquid stain remover to the stained portion and throw it into the washing tub 29 . In preparation for such a case, by providing the volatilization promoting part 52, even when the laundry 30 to which the stain remover is attached is thrown into the washing tub, the solvent in the stain remover is volatilized by the solvent volatilization operation. can promote As a result, the water content of the stain remover can be reduced to allow the stain remover to easily soak into the laundry 30, and migration of the stain remover into the washing tub 29 when the washing tub 29 rotates can be suppressed. Further, the concentration of the stain remover becomes high due to accelerated volatilization of the solvent. These make it easier to remove dirt adhering to the laundry 30, enabling sufficient dirt removal.

In the illustrated example, the volatilization promoting step S1 is performed while blowing air to the washing tub 29. FIG. Although the details will be described later with reference to FIG. 7 , the amount of air blown to the washing tub 29 is controlled based on the internal temperature of the washing tub 29 measured by the temperature sensor 13 .

The control device 50 includes, for example, a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), an I/F (interface), etc., although none of them are shown. The control device 50 is embodied by developing a predetermined control program stored in the ROM into the RAM and executing it by the CPU.

For example, when the user attaches a liquid stain remover to the stains on the laundry 30 and throws it into the washing tub 29, and selects and executes an operation mode in which the volatilization acceleration step is performed through the operation panel 55. , the flow shown in FIG.

A detailed description of FIG. 4 is provided with additional reference to FIG. The volatilization promotion step S1 is performed before the washing/drying step S2. The volatilization promotion step S1 is performed by the volatilization promotion unit 52, and the volatilization promotion unit 52 blows air to the washing tub 29 with the blower 61, or heats the laundry 30 with the heater 62 while performing at least one of the volatilization promotion step. S1 is performed. By doing so, volatilization of the solvent in the stain remover adhering to the laundry 30 can be accelerated. In the first embodiment, as an example, only the fan 61 is used to blow air without using the heater 62 .

The heating heats the laundry 30 by heating the air blown by the blower 61 with the heater 62 and blowing the heated air to the washing tub 29. For example, the laundry 30 is directly heated. A separate heater may be provided. Further, the specific contents of air blowing will be described later with reference to FIG. 7 .

The volatilization promoting step S1 includes a standing step S11 of standing still for a predetermined time before the washing tub 29 rotates. By including the standing step S11, the soaking of the stain remover into the laundry 30 can be promoted during the standing step S11. The predetermined time referred to here is the time during which the laundry 30 is impregnated with the stain remover. By setting the predetermined time in this way, it is possible to sufficiently impregnate the laundry 30 with the liquid stain remover during the standing step S11.

The volatilization promotion step S1 further includes a rotation step S12 in addition to the stationary step S11. The rotation step S12 is performed after the standing step S11, and is performed by rotating the washing tub 29 at a rotation speed slower than that of the washing/drying step S2 (an example of the washing step). By the rotation step S12, even if the solvent remains in the stain remover at the end of the stationary step S11, the excess stain remover is removed from the other part of the laundry 30 to which the stain remover is attached or other laundry. 30 can be attached. As a result, adhesion to the inside of the washing tub 29 can be suppressed, and the stain remover can be used without waste.

In addition, in the case of a washing machine that does not perform the drying step S25 or a washing machine that performs the drying step S25 with the washing tub 29 stopped, the rotation step S12 is performed in the normal washing step (sensing step S21, washing step S22, the rinsing step S23, and the dehydration step S24) are performed at a slower rotational speed. In the rotating step S12, the washing tub 29 does not have to rotate all the time, and may alternately repeat rotating and stopping.

The rotation process S12 includes a first rotation process S12a and a second rotation process S12b. In the first rotation step S12a, the laundry 30 is rotated inside the washing tub 29 at a first rotation speed Ra (FIG. 5) to roll the laundry. In the second rotation step S12b, after the first rotation step S12a, the laundry 30 is rotated at a second rotation speed Rb (FIG. 5) higher than the first rotation speed Ra, and the laundry 30 is moved inside the washing tub 29 so as to bounce. . By the first rotation step S12a and the second rotation step S12b, the laundry 30 to which the stain remover is attached to the other laundry 30 and the like by rolling is moved inside the washing tub 29 so as to bounce. can be done. As a result, air can be brought into contact with the laundry 30 evenly, and volatilization of the solvent in the stain remover can be promoted.

FIG. 5 is a time chart regarding the rotational speed of the washing tub 29 in the volatilization acceleration step S1. FIG. 6 is a time chart showing an enlarged portion A of FIG. Of the volatilization promotion step S1, the stationary step S11 (FIG. 4) is performed from time t0 to t1, the first rotation step S12a (FIG. 4) is performed from time t1 to t2, and the second rotation step S12b (FIG. 4) is performed at time t2. to t6.

The standing step S11 is performed for a predetermined period of time as described above, preferably for a period of time during which the laundry 30 is impregnated with the stain remover.

In the illustrated example, the first rotation step S12a is performed by repeating rotation at the first rotation speed Ra and rotation speed 0 (that is, stop). The repetition of rotation and stop at the first rotation speed Ra is only an example, but after 3 to 10 seconds of forward rotation, 10 to 30 seconds of stop, and then 3 to 10 seconds of 3 to 10 seconds of reverse rotation, followed by 10 to 30 seconds of rotation. 1 to 5 cycles can be performed with one cycle of stopping. By alternately rotating forward and reverse, it is possible to suppress uneven adhesion of excess stain remover to the laundry 30 to which the stain remover is attached and other laundry 30 . However, only forward rotation or only reverse rotation may be used.

The first rotation speed Ra is arbitrary as long as the laundry 30 can be moved so as to roll the laundry 30 inside the washing tub 29 as described above. The speed may be appropriately set depending on the height, width in the circumferential direction, etc., and is, for example, 5 to 25 rpm. With such a rotation speed, even if the laundry 30 collides with the lifter 33 (FIG. 2) when the washing tub 29 rotates, it can be rolled inside the washing tub 29 without being raked up by the lifter 33 . .

In the illustrated example, the second rotation step S12b is performed by repeating rotation at the second rotation speed Rb and rotation speed 0 (that is, stop). The repetition of rotation and stop at the second rotation speed Rb is only an example, but after 3 to 10 seconds of forward rotation, stop for 1 to 10 seconds, then 3 to 10 seconds of reverse rotation, and then stop for 1 to 10 seconds. Then, 1 to 100 cycles can be performed, with 30 to 90 seconds being stopped as one cycle. By alternately rotating forward and backward, it is possible to suppress uneven air contact with the laundry 30 that has jumped up. However, only forward rotation or only reverse rotation may be used.

The second rotation speed Rb is higher than the first rotation speed Ra as described above, and is arbitrary as long as the laundry 30 can be moved so as to bounce the laundry 30 inside the washing tub 29. It may be appropriately set according to the inner diameter dimension, the height of the lifter 33 (FIG. 2), the circumferential width, etc., and is, for example, 45 to 75 rpm. At such a rotational speed, the laundry 30 colliding with the lifter 33 (FIG. 2) can be bounced inside the washing tub 29 by the rotation of the washing tub 29, and the laundry 30 can be raked up. If the lifter 33 is not provided, the same effect can be obtained by applying an inertial force to the laundry 30 by suddenly stopping the rotating washing tub 29, for example.

FIG. 7 is a time chart of each mechanism in the volatilization acceleration step S1. For convenience of illustration, FIG. 7 does not strictly match the shape of the time charts of FIGS. 5 and 6 above. The volatilization promotion step S1 performed at times t0 to t6 is performed while performing at least one of air blowing and heating as described above. In the illustrated example, the volatilization promoting unit 52 (FIG. 3) performs the stationary step S11 (FIG. 4) from time t0 to t1 while blowing air by driving the blower 61 (FIG. 3). Ventilation of the solvent can be accelerated by blowing air. However, the volatilization promoting unit 52 performs the stationary step S11 without heating by the heater 62 (FIG. 3). As a result, an excessive temperature rise of the laundry 30 can be suppressed, and stains such as protein can be suppressed from adhering and easily removed.

Further, the volatilization promotion unit 52 performs the rotation step S12 (FIG. 4) from times t1 to t6 while blowing air by driving the blower 61. FIG. Ventilation of the solvent can be accelerated by blowing air. However, the volatilization promoting unit 52 performs the rotation step S<b>12 without heating by the heater 62 . As a result, an excessive temperature rise of the laundry 30 can be suppressed, and stains such as protein can be suppressed from adhering and easily removed. Therefore, in the illustrated example, the volatilization promotion step S1 is performed while only blowing air without heating.

The volatilization promotion unit 52 controls the amount of air blown by the blower 61 based on the internal temperature of the washing tub 29 measured by the temperature sensor 13 (FIG. 3). By doing so, the amount of air to be blown can be changed according to the internal temperature, which is normally approximately the same as the temperature of the laundry 30 . The amount of air to be blown can be controlled by controlling the rotation speed of the blower 61 (for example, the rotation speed of an inverter-controlled motor).

The amount of air blown by the blower 61 is controlled so as to decrease as the internal temperature increases. If the blower 61 continues to be driven, the amount of heat generated by electric devices such as a motor (not shown) that drives the blower 61 increases. Therefore, even if the heater 62 is not used, the air generated by the motor is supplied to the washing tub 29 and the internal temperature of the washing tub 29 rises. Especially in the washing machine 100 of the first embodiment in which air is circulated inside and outside the washing tub 29, the temperature is likely to rise. Therefore, by reducing the amount of air supplied to the washing tub 29 when the internal temperature of the washing tub 29 is high, the excessive temperature rise of the laundry 30 can be suppressed.

In the illustrated example, the volatilization promoting step S1 is started at the rotation speed R1 of the blower 61, but when the internal temperature of the washing tub 29 reaches the temperature T1 at time t3, the rotation speed R1 becomes a rotation speed lower than the rotation speed R1. changed to R2. This reduces the amount of air blown. Further, when the internal temperature of washing tub 29 reaches temperature T2 at time t4, rotation speed R2 is changed to rotation speed R3, which is lower than rotation speed R2. This reduces the amount of air blown. When the internal temperature of the washing tub 29 reaches the temperature T3 at time t5, the rotation speed becomes 0 and the blower 61 stops. By decreasing the rotation speed stepwise in this way, it is possible to both accelerate the volatilization of the solvent by continuing air blowing and suppress the rapid rise of the internal temperature.

Rotational speeds R1, R2, R3 and temperatures T1, T2, T3 may be determined arbitrarily, but the internal temperature of the washing tub 29 is controlled so as not to exceed the upper limit of the temperature at which various types of stains can be removed. preferably. In general, the higher the temperature, the easier it is to remove stains, but some stains (eg, blood, protein, yellowing, etc.) are more difficult to remove at higher temperatures. Therefore, the rotation speeds R1, R2, R3 and the temperatures T1, T2, T3 are set so that the upper limit of the internal temperature of the washing tub 29 is, for example, 35 to 45° C., as the temperature at which various kinds of dirt can be removed. is preferred. The rotation speeds R1, R2, and R3 satisfy, for example, rotation speed R3<rotation speed R2<rotation speed R1, and can be set to 5000 to 15000 rpm. Temperatures T1, T2, and T3 satisfy, for example, temperature T1<temperature T2<temperature T3, and can be set to 35 to 45° C. as described above.

Returning to FIG. 4, the second rotation step S12b ends, the volatilization promotion step S1 ends, and the washing/drying step S2 is performed. The washing and drying process S2 includes the sensing process S21, the washing process S22, the rinsing process S23, the dehydrating process S24, and the drying process S25 as described above, and the sensing process S21 is performed after the volatilization promoting process S1.

The sensing step S21 measures the mass of the laundry 30 by rotating the washing tub 29 . The volatilization promoting step S1 is performed, for example, before the sensing step S21 as described above. By doing so, volatilization of the solvent in the pre-adhered stain remover is promoted, so the solvent adhering to the laundry 30 (FIG. 2) is reduced, and the washing tub 29 in the sensing step S21 It is possible to suppress migration of the stain remover to the inner wall of the washing tub 29 due to the rotation of (FIG. 2). Depending on the measured mass, operation details (such as the rotation speed of the washing tub 29) of the washing process S22, the rinsing process S23, the dehydration process S24, and the drying process S25, which will be described later, are changed. If the mass of the laundry 30 can be detected by another method, or if the user sets the amount of water to be used in the washing step S22 and the rinsing step S23 from the amount of the laundry 30 through the operation panel 55, etc. The sensing step S21 may not be performed.

In the washing step S22, the laundry 30 is washed by supplying water with the drain valve 8 (FIG. 2) closed to store washing water in the outer tub 20 (FIG. 2) and rotating the washing tub 29. In the rinsing step S23, the laundry 30 washed in the washing step S22 is rinsed with tap water. In the dehydration step S24, the washing water in the outer tub 20 is drained by opening the drain valve 8, and the laundry 30 is dehydrated by centrifugal force by rotating the washing tub 29.

In the drying step S25, the washing tub 29 is rotated with the drain valve 8 open. At this time, the blower 61 (Fig. 2) is operated to suck out the air in the outer tank 20 from the ventilation port 32 (Fig. 2), and the air is water-cooled and dehumidified by passing through the water-cooled dehumidification duct 5 (Fig. 2). be. The water-cooled and dehumidified air is heated by heater 62 (FIG. 2) and blown from blow nozzle 11 (FIG. 2) toward laundry 30 in washing tub 29 . The air blown onto the laundry is sent to the water-cooled dehumidifying duct 5 through the air vent 32 (Fig. 2) to generate circulating air 12 (Fig. 2).

The dehumidification of the circulating air 12 moistened by depriving the laundry 30 in the washing tub 29 is performed by opening a cooling water valve (not shown) to supply cooling water 48 (FIG. 2) from the cooling water supply pipe 47 (FIG. 2). ) flow down along the wall surface in the water-cooled dehumidifying duct 5 to bring the cooling water 48 into contact with the circulating air 12 . The cooling water 48 flowing out to the wall surface inside the water cooling dehumidifying duct 5 is discharged through the drain port 37 by the drain hose 9 (FIG. 2). The operation ends when the laundry 30 is dried by water cooling and dehumidification.

According to the washing machine 100 that performs the volatilization promoting step S1 of promoting the volatilization of the solvent in the liquid stain remover adhered to the laundry 30, the solvent volatilizes to move the stain remover to the inner wall of the washing tub 29 during rotation. can be suppressed. This allows sufficient dirt removal. In particular, since the concentration of the stain remover becomes high due to volatilization of the solvent, the stain can be removed more sufficiently.

FIG. 8 is a time chart of each mechanism in the volatilization promotion step S1 executed by the washing machine of the second embodiment. The second embodiment is the same as the washing machine 100 of the first embodiment except that the time chart shown in FIG. 8 is executed instead of the time chart shown in FIG.

In the second embodiment, the volatilization promotion step S1 is performed while performing both air blowing by the blower 61 as in the first embodiment and heating by the heater 62 . In the illustrated example, the volatilization promoting unit 52 (FIG. 3) further performs the standing step S11 (FIG. 4) while performing heating by the heater 62 (FIG. 3). As a result, the evaporation of the solvent due to heating of the laundry 30 and contact with air can be particularly accelerated, the evaporation time can be shortened, and the concentration of the stain remover can be particularly increased. Further, the volatilization promoting unit 52 performs the rotation step S12 (FIG. 4) while performing heating by the heater 62 . As a result, the evaporation of the solvent due to heating of the laundry 30 and contact with air can be particularly accelerated, the evaporation time can be shortened, and the concentration of the stain remover can be particularly increased.

In the second embodiment, the amount of air blown by the blower 61 is constant regardless of the internal temperature of the washing tub. By doing so, it is possible to easily control each mechanism in the volatilization promotion step S1.

FIG. 9 is a time chart of each mechanism in the volatilization promotion step S1 executed by the washing machine of the third embodiment. The third embodiment is the same as the washing machine 100 of the first embodiment except that the time chart shown in FIG. 9 is executed instead of the time chart shown in FIG.

In the third embodiment, the volatilization promotion step S1 does not perform the rotation step S12 (FIG. 4), but performs only the stationary step S11, and the stationary step S11 performs only air blowing. Even if only the air is blown, air can be brought into contact with the laundry 30 and the internal temperature of the washing tub 29 can be increased, thereby promoting volatilization of the stain remover adhering to the laundry 30 . Thereby, volatilization time can be shortened. 3rd Embodiment is suitable when a user arrange|positions the adhesion surface of a dirt remover on the extension line of the blowing nozzle 11 (FIG. 2).

FIG. 10 is a time chart of each mechanism in the volatilization promotion step S1 executed by the washing machine of the fourth embodiment. The fourth embodiment is the same as the washing machine 100 of the first embodiment except that the time chart shown in FIG. 10 is executed instead of the time chart shown in FIG.

In the fourth embodiment, the volatilization promotion step S1 is performed with the heater 62 turned on in addition to the above-described third embodiment. In this way, by performing both heating and air blowing, air can be brought into contact with the laundry 30 and the internal temperature of the washing tub 29 can be greatly increased, and the stain remover adhering to the laundry 30 can be volatilized particularly. can promote. Thereby, volatilization time can be shortened.

Further, in the fourth embodiment, as in the second embodiment, the amount of air blown by the blower 61 is constant regardless of the internal temperature of the washing tub. By doing so, it is possible to easily control each mechanism in the volatilization promotion step S1.

It should be noted that the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments are detailed descriptions for easy understanding of the present invention, and are not necessarily limited to those having all the configurations. In addition, it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Moreover, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration.

1 Base 10 Drainage hose hook 100 Washing machine 11 Blow nozzle 12 Circulating air 13 Temperature sensor 19 Housing 2 Outer frame 20 Outer tub 20a Bottom surface 20b Side wall 21 Suspension 22 Front cover 23 Back cover 29 Washing tub 29a Bottom surface 29b Side wall 3 Door 30 laundry 31 fluid balancer 32 vent 33 lifter 34 metal flange 35 shaft 36 motor (rotating mechanism)
37 drain port 38 packing 39 drain port 4 bellows 40 air passage 47 cooling water supply pipe 48 cooling water 5 water cooling dehumidifying duct 50 control device 51 washing/drying unit 52 volatilization promotion unit 55 operation panel (operation unit)
6 Drying device 61 Blower 62 Heater 7 Bellows 70 Vibration sensor 71 Handle 8 Drain valve 9 Drain hose R1, R2, R3 Rotational speed Ra First rotational speed Rb Second rotational speed S1 Volatilization promotion step S11 Settling step S12 Rotation step S12a First rotation step S12b Second rotation step S2 Washing and drying step (washing step)
S21 Sensing process (washing process)
S22 Washing process (washing process)
S23 Rinsing process (washing process)
S24 Dehydration step (washing step)
S25 drying process T1, T2, T3 temperature t1, t2, t3, t4, t5, t6 time

Claims (12)

a washing tub in which laundry is stored;
a rotating mechanism for rotating the washing tub;
After starting the operation of the washing machine, at least before the rotation of the washing tub and before pouring water into the washing tub , volatilization of the solvent in the stain remover of the liquid adhered to the laundry is accelerated to remove the stain remover. a control device comprising a volatilization promotion unit that performs a volatilization promotion step for reducing the moisture content ,
The volatilization promotion step includes
Including a standing step of standing still for 30 seconds or more and 3 minutes or less before rotating the washing tub,
performed before the sensing step of measuring the mass of the laundry
A washing machine characterized by: At least one of a blower that blows air into the washing tub or a heater that heats the laundry,
The washing machine according to claim 1, wherein the volatilization promoting section performs the volatilization promoting step while performing at least one of air blowing by the air blower and heating by the heater. A temperature sensor that measures the internal temperature of the washing tub,
3. The washing machine according to claim 2, wherein the volatilization promotion unit controls the amount of air blown by the blower based on the internal temperature. The washing machine according to claim 3, wherein the amount of air blown by the blower is controlled so as to decrease as the internal temperature increases. Equipped with at least a blower that blows air into the washing tub,
The washing machine according to claim 1 , wherein the volatilization promotion unit performs the stationary step while blowing air by driving the air blower. Further comprising a heater for heating the laundry,
6. The washing machine according to claim 5 , wherein the volatilization promoting unit performs the stationary step while performing heating by the heater. The washing machine according to claim 1 , wherein the volatilization promoting step is performed after the standing step, and further includes a rotating step of rotating the washing tub at a slower rotation speed than the washing step. The rotating step includes
a first rotation step of rotating at a first rotation speed to roll the laundry inside the washing tub; and
After the first rotation step, the laundry is rotated at a second rotation speed higher than the first rotation speed, and the second rotation step causes the laundry to bounce inside the washing tub;
8. The washing machine according to claim 7 , comprising: Equipped with at least a blower that blows air into the washing tub,
The washing machine according to claim 8 , wherein the volatilization promoting unit performs the rotating step while blowing air by driving the blower. Further comprising a heater for heating the laundry,
10. The washing machine according to claim 9 , wherein the volatilization promoting unit performs the rotating step while performing heating by the heater. The washing machine according to any one of claims 1 to 4 , wherein the sensing step is performed by rotating the washing tub. The washing machine according to any one of claims 1 to 4, further comprising an operation unit that receives execution of the volatilization promotion step.

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