JP6678621B2 - Washing and drying machine - Google Patents

Description

  The present invention relates to a washer / dryer that can wash a blanket, a futon, and the like.

  In order to clean blankets and futons that often come into direct contact with human skin, washing, drying in the sun, and vacuuming are generally performed. Although it is possible to remove tick droppings and dead bodies by washing and cleaning, it is not easy to kill mites by washing and drying in the sun. It is not easy to absorb.

  Experimental results show that the mite of the house dust mite, which is most common indoors, is 100% susceptible to heat and sustains a temperature of 50 ° C. or more for 20 minutes.

  A washing machine having a function of killing mites by such heat is described in Patent Document 1. Japanese Patent Application Laid-Open No. H11-163873 discloses that "a washing tub for storing and washing laundry and a steam generating means or hot water supplying means for supplying steam to the washing tub are provided. A washing machine with a disinfectant / miticidal function that operates between the time the clothes are put into the tub and the time water is supplied, supplies steam or hot water to the clothes from above the washing tub, and then starts the normal washing process. It is described.

  A washing machine having a function of washing a blanket or a futon is described in Patent Document 2. Patent Document 2 discloses that “an outer tub supported in vibration isolation in an outer frame, a washing and dewatering tub disposed in the outer tub, a rotating blade disposed in the washing and dewatering tub, In a dehydrating washing machine having an operation unit and a display unit disposed at the top, when a course for washing a futon is selected by the operation unit, the water level supplied is increased to a water level higher than a high water level for washing laundry of a rated capacity. Water is supplied into the dewatering tub, the display unit displays a high water level for washing the laundry of the rated capacity, and the washing and dewatering tub and the rotor are integrally rotated intermittently in one direction for washing. The dehydration washing machine is characterized by the following. "

Japanese Patent No. 2639045 Japanese Patent No. 3232892

  Although the purpose is to sterilize and kill mites with steam or hot water, almost no effect of steam penetration can be expected inside or below the folded blanket or futon.

  Conventionally, a course for washing a blanket of a vertical type washing machine is to wash a blanket or a futon by supplying water to a water level at which the blanket is immersed, and integrally rotating the washing and dewatering tub and the rotary wing in one direction. Since the mechanical force acting on the blanket and the futon is small, it has not been possible to expect to sufficiently remove dead mites.

  Therefore, an object of the present invention is to provide a washing / drying machine that can heat a laundry such as a blanket that is vulnerable to heat to kill the mites and efficiently remove the killed mites from the laundry. It is in.

  In order to achieve the above object, the present invention provides a housing, an outer tub supported in the housing and for storing washing water therein, and a laundry housed in the outer tub rotatably supported about a vertical axis. A washing tub, a rotating wing rotatably installed at the bottom of the washing tub, an operation in a first driving mode for rotating the rotating wing while the washing tub is stationary, and the washing tub and the rotation. Drive means capable of operating in a second drive mode for integrally rotating the wings, blowing means for supplying air into the washing tub, heating means for heating air supplied into the washing tub, Water supply means for supplying water into the washing tub, control means for controlling the operation of the driving means, the air blowing means, the heating means and the water supply means, the control means, in the washing tub After the heating process that supplies hot air, The rinsing process, characterized in that operating the driving unit in the first drive mode, the washing and drying machine.

  According to the present invention, when heating a laundry such as a heat-sensitive blanket to kill ticks, a mechanical force is applied to the laundry during a washing step or a rinsing step performed after the ticks are killed. Can be efficiently removed.

FIG. 2 is a longitudinal sectional view showing the structure of the washing / drying machine according to the embodiment of the present invention. Functional configuration diagram of the washing and drying machine according to the embodiment of the present invention Basic control flowchart of a tick control course according to an embodiment of the present invention Basic control flowchart of a tick control course according to another embodiment of the present invention Control flowchart of heating and humidification processing according to the embodiment of the present invention Blanket temperature distribution according to an embodiment of the present invention Explanatory drawing of operation and drive mode according to the embodiment of the present invention. Longitudinal sectional view showing the structure of a washing / drying machine according to another embodiment of the present invention.

  Hereinafter, a washing and drying machine according to an embodiment of the present invention will be described with reference to the drawings. The following embodiments are examples embodying the present invention, and do not limit the technical scope of the present invention.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1, 2, 3, 4, 5, 6, and 7. FIG.

  FIG. 1 is a longitudinal sectional view showing a structure of a washing and drying machine according to an embodiment of the present invention, and FIG. 2 is a functional configuration diagram of the washing and drying machine according to an embodiment of the present invention.

  In an outer frame 1 of the washing / drying machine, an outer tub 2 for storing washing water is supported by four anti-vibration members (not shown) suspended from four corners at the upper end of the outer frame 1. It is arranged vertically in the center of. The washing tub 3 arranged in the outer tub 2 is formed in a cylindrical shape with a bottom that is long in the axial direction using a stainless steel plate. In the peripheral wall of the washing tub 3, a through hole 7 for water passage and ventilation is formed.

  In the center of the inner bottom surface portion in the washing tub 3, a rotating blade 6 for stirring, washing, rinsing, and drying operations of the laundry is rotatably provided. The rotary wing 6 is rotationally driven by a driving device 8, and performs a washing operation, a rinsing operation, a drying operation, and the like by repeating forward rotation / reverse rotation. During the spin-drying operation, the washing tub 3 and the rotary wing 6 rotate at a high speed integrally, and the water contained in the laundry is dehydrated.

  The drive device 8 incorporates a drive motor using a reversible rotation type capacitor split-phase single-phase induction motor, an inverter drive motor, an electromagnetic clutch mechanism and a planetary gear reduction mechanism, and controls the drive motor and the electromagnetic clutch mechanism. Thereby, the agitating drive mode (first driving mode) in which the rotating blades 6 are repeatedly rotated forward and backward (reciprocating) while the washing tub 3 is stationary, and the washing tub 3 and the rotating blades 6 are integrally rotated in the same direction. A dehydration driving mode (second driving mode) in which the washing tub 3 and the stirring blade 6 are not connected to each other, and a neutral driving mode (third driving) in which the washing tub 3 rotates in the opposite direction when the stirring blade 6 is rotated when the stirring blade 6 is rotated. Has a drive function of selectively executing the first embodiment.

  A circulation duct 18 connected to the outer tub 2 by an exhaust connection 24 is provided on the rear side of the outer frame 1, and the air in the circulation duct 18 evaporates from the laundry in the drying process. A water-cooled dehumidifying plate 20 for cooling and dehumidifying hot air containing moisture with cooling water is installed, and a lint filter (not shown) for removing lint and the like contained in circulating warm air is attached and detached. It is installed as possible. The hot air flows from the outer tub 2 through the exhaust connection portion 24, from the bottom of the circulation duct 18 to the upper direction, as shown by the outline arrow, and further to the blower 19, after being cooled and dehumidified. And a heater 17 for heating the circulating hot air. The air heated by the heater 17 supplies warm air to the washing tub 3 through the air duct 26. A mist mesh 28 formed by weaving thin metal wires into a substantially hemispherical net shape is attached to a supply port of the warm air supplied to the washing tub 3. Above the mist mesh 28, a mist nozzle 27 projects downward in the air duct 26. When the tap water is supplied to the mist nozzle 27, the tap water injected downward from the mist nozzle 27 collides with the mist mesh 28, and the tap water becomes fine (mist) and is sprayed into the washing tub 3. Is done.

  The mesh of the mist mesh 28 is desirably coarser than a water supply filter (not shown) provided inside the water supply hose connection port 10. This can prevent the mist mesh 28 from being clogged by dust in tap water. Further, by disposing the mist mesh 28 below the mist nozzle 27, the water sprayed from the mist nozzle 27 is accelerated by the gravitational acceleration and then collides with the mist mesh 28, thereby further promoting the miniaturization of water. can do.

  A hot air temperature sensor 21 that detects the temperature of the heated hot air is installed in the air duct 26 and is used to control the heating of the heater 17. Further, a humidity sensor (not shown) sensitive to the humidity of the circulating air is installed in the air path.

  The circulation duct 18 is provided with a circulation temperature sensor 22 for detecting the temperature of the hot air discharged from the washing tub 3 and circulating in the circulation duct 18, and the exhaust connection 24 is provided with a drain temperature sensor 23 at a position where the cooling water flows. The temperature of the cooling water including the condensed water that has been installed, cooled and condensed and recovered is detected.

  During the washing operation, the temperature of the washing water or the rinsing water is detected by the circulation temperature sensor 22 or the drain temperature sensor 23, and the control of the washing process or the rinsing process is changed based on the detected water temperature. It is also possible.

  The control unit 9 is mainly configured by a microcomputer 37.

  The microcomputer 37 has a function of controlling the display panel 16, the water supply unit 11, and the drain valve 14. In addition, the drive of the motor 32 of the drive device 8 is controlled via the motor drive circuit 31, the clutch mechanism 34 is switched via the clutch drive circuit 33, and the ON / OFF of the heater switch 35 is controlled, thereby energizing the heater 17. It has a function of controlling the blower 19 via the fan drive circuit 36 by controlling the strong / weak / off.

  FIG. 3 is a basic control flowchart of the tick control course according to the embodiment of the present invention, which is executed by the microcomputer 37 in the control unit 9.

  FIG. 7 is an explanatory diagram of a drive mode in which the microcomputer 37 in the control unit 9 controls the clutch mechanism 34.

  The microcomputer 37 executes the following control processing when a power switch (not shown) is turned on.

Step S01
When the power is turned on, after performing the initialization processing of the control processing system, the clutch mechanism 34 is controlled to the position at the time of starting the washing, and if the drain valve 14 is not closed, the closing control is performed.

Step S02
A laundry, here a blanket or a futon, is put into the washing tub 3 and a course selection button (not shown) of the operation switch 30 is operated to perform an initial setting. When a start button switch is pressed, an operation control process is executed. I do. In the initial setting, a course for mites control according to the embodiment of the present invention is selected and set.

Step S03
The main water supply solenoid valve (not shown) of the water supply unit 11 is opened to start tap water supply. The washing water is supplied up to a set amount of water, but the clutch mechanism 34 is controlled to the dewatering position, and the washing tub 3 and the rotary wing 6 are integrally rotated at a low speed in the same direction, so that the blanket as the laundry is washed. And futons are controlled to absorb water quickly.

Step S04
In a washing / drying machine having a washing tub 3 rotating around a vertical axis, tap water supplied to a set amount of water dilutes a detergent to a detergent concentration preferable for washing. Blankets and futons are in a soaked state. In this state, the drive unit 8 is controlled to set the clutch mechanism 34 to the dehydration drive mode, to rotate the tub 3 for rotating the washing tub 3 and the rotary wing 6 integrally, or to set the clutch mechanism 34 to the neutral drive mode to rotate the By the reaction of rotating the wings 6, the washing of the washing tub 3 in the reverse direction is selected and executed.

  The spinning bath is suitable for washing a blanket or a futon without damaging it, but has little mechanical detergency to the blanket or the futon.

  Tank wing washing has the advantages of both tank washing and stirring washing, and can provide an appropriate mechanical washing power without damaging a blanket or a futon.

  In a so-called drum type washing / drying machine having a washing tub 3 that rotates about a horizontal axis or an inclined axis, the washing tub 3 is rotated forward / reverse without supplying tap water until a blanket or a futon as laundry is soaked. Then, a blanket or a futon, which is a laundry, is lifted to the upper portion and dropped and slap-washed.

Step S05
The drain valve 14 is opened to drain the washing liquid out of the machine. In this washing and draining operation, the clutch mechanism 34 is controlled to the dehydration driving mode during or after draining.

Step S06
After the drainage is completed, the washing tub 3 and the rotary wing 6 are integrally rotated at a high speed in one direction to centrifugally dehydrate the washing liquid contained in the blanket or the futon.

Step S07
The drain valve 14 is closed, and the main water supply solenoid valve of the water supply unit 11 is opened to supply tap water to the set water amount.

Step S08
The rinsing 1 operation is executed by controlling the driving device 8. In some cases, rinsing 1 operation may be skipped in order to shorten the operation time.

Step S09
The drain valve 14 is opened to drain the rinse water out of the machine. In the rinse 1 drainage operation, the clutch mechanism 34 is controlled to the dehydration drive mode during drainage.

Step S10
By rotating the washing tub 3 and the rotary wing 6 integrally in one direction at high speed, rinsing water contained in a blanket or a futon as laundry is centrifugally dehydrated.

Step S11
The drain valve 14 is closed, and the control unit 9 controls the blower 19, the heater 17, and the driving device 8 to execute the heating and humidifying process.

  Specifically, as shown in the flowchart of FIG. 5, the driving device 8 is controlled to rotate the washing tub 3 at low speed (step S501). And the control part 9 controls the fan drive circuit 36, drives the blower 19, and supplies air into the washing tub 3 (step S502).

  After that, the control unit 9 controls the heater switch 35 to be ON to perform the strong operation of the heater 17 (step S503). The blanket or the futon, which is the laundry, is heated by the hot air temperature sensor 21 installed in the air duct 26 until the hot air temperature becomes 80 ° C. or higher (step S504). When the hot air temperature sensor 21 detects that the hot air temperature exceeds 80 ° C., the control unit 9 controls the water supply unit 11 to supply tap water intermittently from the mist nozzle 27 (step S505). .

  The mist supply electromagnetic valve (not shown) of the water supply unit 11 can supply 0.2 to 0.5 L of tap water to the mist nozzle 27 per minute. In the present embodiment, the blanket or the futon which is the laundry is used. It is necessary to keep the temperature at which the mites are killed while preventing the fibers from deforming due to heat and causing the texture to be stiff, so after turning on the water supply solenoid valve for mist for 10 seconds, then turning off the intermittent water supply for 170 seconds. Do. This ON / OFF time distribution is one control plan, and by setting it in accordance with each washing / drying machine, it is possible to prevent the temperature of the blanket or the futon, which is the laundry, from excessively rising.

  The circulating temperature sensor 22 installed in the circulating duct 18 intermittently sprays mist until the temperature of the hot air circulating in the circulating duct 18 exceeds 50 ° C. while heating the blanket or futon as laundry. Humidification is continued (Step S506).

  When the circulating temperature sensor 22 detects that the circulating temperature has exceeded 50 ° C., the control unit 9 turns off the mist water supply electromagnetic valve of the water supply unit 11 and stops intermittent spraying of the mist (step S507). Thereafter, the control unit 9 controls the heater switch 35 to operate the heater 17 weakly (step S508). Simultaneously with the start of the weak operation of the heater 17, a weak operation timer is started (step S509), and the operation is continued until the weak operation has elapsed for 30 minutes (step S510). This is a process for keeping a blanket or a futon, which is laundry, at a temperature of 50 ° C. or more for 20 minutes in order to kill ticks, and the laundry put in the washing tub 3 that rotates about a vertical axis. This is in response to the fact that the temperature of the lower part of the blanket or futon is difficult to rise. In a washer / dryer having a washing tub 3 that rotates around a horizontal axis or an inclined axis, a blanket or a futon, which is laundry, can be changed by rotating the washing tub 3, so that weak driving can be skipped. It is possible. When the weak operation timer has elapsed for 30 minutes, the control unit 9 turns off the heater switch 35 and stops heating by the heater 17 (step S511). At the same time as the heating by the heater 17 is stopped, a blowing operation timer is started (step S512). The blower 19 is operated until the blowing operation has been performed for 15 minutes (step S513). When the blowing operation has been performed for 15 minutes, the control unit 9 controls the fan drive circuit 36 to stop the operation of the blower 19 (step S514). .

  After stopping the blowing operation, the control unit 9 controls the driving device 8 to stop the rotation of the washing tub 3 (Step S515).

Step S12
The main water supply solenoid valve of the water supply unit 11 is opened to supply tap water to the set water amount.

Step S13
The rinsing 2 operation is executed by controlling the driving device 8.

  In the rinsing 2 operation, the clutch mechanism 34 is set to the stirring drive mode, and the washing tub 3 is rotated in a stationary state in order to apply mechanical force for removing dead carcasses of the mites to the blanket or the futon as the laundry. The washing with agitating the blades 6 in the forward / reverse direction or the washing in which the washing tub 3 is rotated in the reverse direction by the reaction of rotating the rotating blades 6 with the clutch mechanism 34 in the neutral drive mode are selected and executed.

Step S14
Rinse water is drained out of the machine as in step S09.

Step S15
As in step S10, the rinse water contained in the blanket or futon as the laundry is centrifugally dehydrated.
Hereinafter, steps S16, S17, and S18 are similarly performed, but these steps may be omitted in some cases.

Step S19
A blanket or a futon, which is laundry that has been sufficiently rinsed, is sufficiently centrifugally dehydrated in this final dehydration.

  FIG. 4 shows that the basic control is the same as that of the flowchart of FIG. 3, although there is a difference that the heating and humidification processing (step S11) is executed before the washing and water supply (step S03).

  FIG. 6 is a diagram schematically illustrating the temperature distribution of the blanket, and the cooling effect of the heating and humidifying process will be described with reference to FIG.

  (A) shows a heating process in the case where the micronized water is not intermittently supplied into the washing tub 3, and (b) shows a heating and humidification process in which the micronized water is intermittently supplied. Show the case.

  In the section tA, the heater 17 is strongly operated, in the section tB, the heater 17 is weakly operated, and in the section tC, the air blowing operation with the heater 17 turned off is performed.

The blanket or futon, which is the laundry put into the washing tub 3 rotating about the vertical axis, has a temperature change like a temperature change T1 on the upper surface close to the place where the hot air is supplied. Exceed.
On the other hand, in the lower part of the washing tub 3, the temperature changes like the temperature change T2, and the heating time to the point B exceeding 50 ° C. becomes longer. For this reason, the temperature change T1 continues to be further heated from the point A, the temperature rises rapidly as the moisture content in the blanket decreases, reaches the maximum temperature at the point C, and the blanket fibers are thermally deformed. I will.

  When the heating and humidifying process according to the present embodiment is performed, if the hot air temperature exceeds 80 ° C., tap water is intermittently supplied from the mist nozzle 27 (line M). Thereby, on the upper surface close to the place where the hot air is supplied, the temperature rise from the point A exceeding 50 ° C. becomes gentle. Further, in the lower portion of the washing tub 3, the temperature change T2 exceeds 50 ° C. at the point B, and the temperature continues to rise thereafter. In the section tB in which the heater 17 is weakly operated, the temperature change T1 is almost level or rises gently. In the heating and humidifying treatment according to this embodiment, the temperature does not exceed 60 ° C. On the other hand, in the temperature change T2, the temperature continues to rise even in the weak operation section tB, and furthermore, the temperature continues to rise gently also in the blowing operation section tC, making it possible to maintain 50 ° C. or more for 20 minutes or more.

  According to the present embodiment as described above, by appropriately cooling and humidifying the laundry, it is possible to prevent the temperature of the laundry from excessively rising, and to efficiently kill mites by maintaining a constant temperature. It becomes possible.

  Further, by using the mist for the cooling process, it is possible to suppress the temperature from rapidly dropping, and to more appropriately control the temperature.

  FIG. 8 is a vertical cross-sectional view showing the structure of a washer / dryer according to another embodiment of the present invention. In the heat treatment in the second embodiment, hot air is supplied into the washing tub 3 as in the first embodiment. In addition, a water supply heater 38 is installed in a pipe for supplying water from the water supply unit 11 into the washing tub 3, and heated water is supplied into the washing tub 3. The difference is that the ticks are efficiently killed when held for a minute.

  Instead of supplying water while heating the water, a heater (not shown) for heating the water is installed between the outer tub 2 and the washing tub 3, and the supplied water is heated, and a blanket or a futon which is laundry is provided. Can be held at 50 ° C. or higher for 20 minutes.

  In the case of a so-called vertical washing / drying machine, the amount of water for washing a blanket or a futon, which is laundry, is large, and the time for heating the water is long, or the amount of power consumption is large. It is more effective to heat the laundry with the warm air after the blanket or the futon which is the laundry is dry, or after dehydrating the water content.

1 outer frame (housing)
2 Outer tub 3 Washing tub 6 Rotary wing 8 Drive unit (drive unit)
9 control unit 17 heater (heating means)
19 blower (blower supply means)
20 Water-cooled dehumidifier (water-cooled dehumidifier)
21 Hot air temperature sensor 22 Circulation temperature sensor 27 Mist nozzle (mist spraying means)
28 Mist mesh (refinement member, mist spraying means)

Claims (5)

A housing,
An outer tub supported in the housing and storing washing water inside,
A washing tub that is rotatably supported about a vertical axis in the outer tub and stores laundry;
Rotor blades rotatably installed at the bottom of the washing tub,
Driving means capable of operating in a first drive mode for rotating the rotating blades while the washing tub is stationary, and operating in a second drive mode for integrally rotating the washing tub and the rotary blades When,
Blowing means for supplying air into the washing tub,
Heating means for heating air supplied into the washing tub,
Water supply means for supplying water into the washing tub,
Control means for controlling the operation of the driving means, the blowing means, the heating means and the water supply means,
The washing step or the rinsing step, which is executed after the control means executes a heating process of supplying warm air into the washing tub, operates the driving means in the first drive mode. Machine. A housing,
An outer tub supported in the housing and storing washing water inside,
A washing tub that is rotatably supported about a vertical axis in the outer tub and stores laundry;
Rotor blades rotatably installed at the bottom of the washing tub,
An operation in a first drive mode in which the rotor is rotated while the washing tub is stationary; an operation in a second drive mode in which the washing tub and the rotor are integrally rotated; and Driving means capable of operating in a third drive mode for rotating the rotor in a state where the rotor is free to rotate and the reaction force of the rotor is applied to the washing tub;
Blowing means for supplying air into the washing tub,
Heating means for heating air supplied into the washing tub,
Water supply means for supplying water into the washing tub,
Control means for controlling the operation of the driving means, the blowing means, the heating means and the water supply means,
The washing step or the rinsing step, which is executed after the control means executes a heating process of supplying warm air into the washing tub, operates the driving means in the third drive mode. Machine. A housing,
An outer tub supported in the housing and storing washing water inside,
A washing tub that is rotatably supported about a vertical axis in the outer tub and stores laundry;
Rotor blades rotatably installed at the bottom of the washing tub,
Driving means capable of operating in a first drive mode for rotating the rotating blades while the washing tub is stationary, and operating in a second drive mode for integrally rotating the washing tub and the rotary blades When,
Water supply means for supplying water into the washing tub,
Heating means for heating the water supplied into the washing tub,
Control means for controlling the operation of the driving means, the water supply means and the heating means,
A washing / drying machine, wherein the control means operates the driving means in the first driving mode in a washing step or a rinsing step executed after executing a heating treatment of the water supplied into the washing tub; . A housing,
An outer tub supported in the housing and storing washing water inside,
A washing tub that is rotatably supported about a vertical axis in the outer tub and stores laundry;
Rotor blades rotatably installed at the bottom of the washing tub,
An operation in a first drive mode for rotating the rotor while the washing tub is stationary, an operation in a second drive mode for integrally rotating the washing tub and the rotor, and Driving means capable of operating in a third drive mode for rotating the rotor in a state where the rotor is free to rotate and the reaction force of the rotor is applied to the washing tub;
Water supply means for supplying water into the washing tub,
Heating means for heating the water supplied into the washing tub,
Control means for controlling the operation of the driving means, the water supply means and the heating means,
A washing / drying machine, wherein the control means operates the driving means in the third driving mode in a washing step or a rinsing step executed after the heating processing of the water supplied into the washing tub is executed; .   The washing / drying machine according to any one of claims 1 to 4, wherein the washing step or the rinsing step performed before the heat treatment operates the driving unit in the second driving mode.

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