JPH10211383A - Drum type dryer/washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make possible to reduce creases, shrinkage, and damage to clothes when they are dried, reduce damage to delicate clothes, and dry delicate clothes that were impossible to dry previously, by providing a special course for drying delicate clothes such as dry-cleaning clothes in a drying process. SOLUTION: To dry delicate clothes such as dry cleaning, when the dry- cleaning clothes drying course is selected and started, with a drum 2 remaining stopped, air warmed by a 'weak heating' heater 25 is blown into the drum 2 by fan 19, passes through wet washing and becomes humid air, entering into a heat exchanger 7 through an exhaust duct 18. Then cool water jets from a water supply valve 6 condense the humid air, and cooled dry air is heated again by the heater 28 and re-circulated into the drum 2. When temperature inside the drum 2 reaches a prescribed value, the heater 28 is turned off, and when the temperature drops, it is turned on again. Thus electricity application is repeated for a prescribed period of time, and air blowing is made and finished.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type washing machine having a dedicated course for drying delicate clothes such as dry mark clothes.

[0002]

2. Description of the Related Art Hitherto, many horizontal drum-type washing machines that rotate about a horizontal axis have been proposed, and most of the washing machines used in Europe are of this type. In general, a washing machine of this type performs a washing operation by continuously rotating a rotating drum at a low speed. By using this rotating drum, dehydration and drying can be easily performed.

[0003]

However, in such a conventional drum-type washing machine, during the drying operation, the drum is rotated from the beginning to the end to dry, so that the mechanical power is too large and the dry mark clothes are dried. It was not desirable for delicate clothing such as. The present invention is intended to solve the problem having the above-mentioned conventional configuration, and controls the rotation of the drum and provides a soft drying operation course to execute the optimal drying operation for the above-mentioned kind of clothes. It is intended to provide a drum-type drying washing machine having a drying function that can be performed.

[0004]

SUMMARY OF THE INVENTION A drum type washing machine according to the present invention solves the above-mentioned problems, and is a dedicated course for drying delicate clothes such as dry mark clothes in a drying step of the drum type washing machine. The operation content of the dedicated course is that the drying operation is performed while the rotation of the drum in the drying process is stopped, or the ON / OFF time ratio of the drum rotation in the drying process is controlled to 1/300 or less, and intermittently. The drying operation is performed while rotating.

[0005] Further, by setting the rotation speed of the drum lower than the rotation speed in the washing process, or by setting the rotation angle of the drum to 180 degrees or less, or by rotating the drum alternately left and right, the mechanical force acting on the garment is reduced, and the cloth is damaged. Less. Then, when the temperature in the drum reaches a predetermined value, the heater is turned on.
/ OFF, drying for a set time, and a drying operation at a temperature lower than a normal drying course, it is possible to reduce the influence of heat on clothes.

In addition, a key for selecting and setting a dedicated course for drying delicate clothes is provided on the operation unit, and display means for indicating that a dedicated course for drying delicate clothes is set is provided. Operability is improved. Furthermore, by providing a means for selecting a dedicated course for continuously operating delicate clothes from washing to drying, and a display means for indicating that the dedicated course has been set, usability and operability are improved. improves.

In addition, when the washing is completed, the machine is automatically paused,
By providing the display means for prompting the user to take out the clothes and re-fold them before moving to the drying step, the user can surely re-fold the clothes before moving to the drying step.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a drum type washing machine according to an embodiment of the present invention. The drum type washer of the present invention will be described with reference to FIGS. FIG. 1 is a schematic longitudinal sectional front view showing the internal structure of a drum type washing machine of the present invention, and FIG. 2 is a schematic vertical sectional side view showing the internal structure of the drum type washing machine of the present invention.

The structure will be described with reference to FIGS. 1 and 2, 1 is a washing machine main body, 2 is a rotating drum, 3 is a stirring baffle, 4 is a water tank, 5 is a high-pressure hose, 6 is a water supply valve, 7 is a circulation duct, 8 is a drain duct, 9
Is a filter case, 10 is a circulation pump, 11 is a drain pump, 12 is a drain hose, 13 is a drying unit, 14 is a rotating shaft, 15 is a drum pulley, 16 is a motor, 17 is a belt, 18 is an exhaust duct, and 19 is a blower fan. , 20 is an operation panel, 21 is a control device, 22 is a detergent case, 22a
Is a flow path, 23 is a door, 24 is a pressure switch, 25 is a door packing, 26 is a filter, 27 is an anti-vibration mechanism, 28 is a heater, and 29 is a heater duct.

The washing machine is substantially a rectangular parallelepiped as a whole, and includes a rotating drum 2 and a water tub 4 in the washing machine main body 1, each having a substantially cylindrical shape and a short axial direction. The rotary drum 2 is provided with a rotary shaft 14 disposed substantially along the horizontal direction, and has a door (in which the rotary shaft is located on the opposite side) in the direction along the rotary shaft 14. 23 are provided.

Reference numeral 25 denotes a door packing, which is internally fitted as a sealing material made of an elastic material such as rubber. Therefore,
When the door 23 is closed, the sealing material is sandwiched between the peripheral edge of the door and the inner peripheral edge of the inlet, so that the watertightness of the washing machine main body 1 and the water tub 4 is maintained.

The rotary drum 2 rotates while storing laundry, and has a stirring baffle 3 formed in the rotary drum 2 in a mountain-like shape protruding toward the central axis. Aquarium 4
Is provided so as to surround the rotary drum 2 and accumulates washing water (including detergent-containing water and rinsing water). The washing water is supplied into the water tub 4 through the water pipe 6a (see FIG. 2) by opening and closing the water supply from the water supply valve 6 through the high-pressure hose 5 connected to the water supply. After entering the case 22, it is supplied into the water tank 4 via the flow path 22a).

The water supply valve 6 also has a switching mechanism for feeding tap water into the drum circulation duct 7 so that cooling water for drying and dehumidification can be showered in the drum circulation duct 7. .

At the bottom of the water tub 4 is provided a drain duct 8 for discharging the washing water in the water tub 4. This drain duct 8 removes contaminants such as lint and dust contained in the drained washing water. The filter 26 removes lint, dust, and the like. Connected to the filter case 9 are a circulation pump 10 for circulating the washing water into the tub 4 and a drain pump 11 for draining the washing water from the tub 4 to the outside of the washing machine.

When the washing water stored in the water tub 4 is circulated, the washing water in the water tub 4 passes from the drainage duct 8 through the filter 26 in the filter case 9, and after the contaminants are removed by the circulation pump 10. It is returned into the water tank 4. From the circulation pump 10, the washing water is supplied to the water tub 4 by a circulation pipe 10 a which is open to a door packing 25 near the inlet of the water tub 4.
Returned within.

When draining the washing water in the water tub 4, the washing water is drained from the washing machine main body 1 through a drain hose 12 from a drain pump 11 branched from the filter case 9.

A drying unit 13 and a circulation duct 7 are provided in the washing machine main body 1 for drying the laundry. The circulation duct 7 is a duct having one end and the other end communicating with the upper end and the lower end in the water tank 4, respectively.
Water for drying and dehumidification enters from the water supply valve 6 through a water pipe 6b (see FIG. 1).

The drying unit 13 is provided with the circulation duct 7.
Is provided in the middle of the air flow path, and comprises a heater and a fan.
The hot air is sent into the water tank 4 via the. That is, the water evaporated from the laundry is dehumidified by the tap water in the circulation duct 7 and again passes through the drying unit 13 to dry the laundry with the warm air dried.

A horizontal rotary shaft 14 is fixedly provided at the end of the drum 2 opposite to the charging port at the center of rotation of the drum 2 through the center of the water tank 4. Has been fixed. A drum driving motor 16 is provided at the lower end of the water tank 4, and a rotating shaft of the motor 16 and a drum pulley 15 are connected by a belt 17. The water tub 4, the rotating shaft 14, the drum pulley 15, the drum driving motor 16 and the like are housed in the washing machine main body 1.

In order to absorb vibrations, the water tank 4 is suspended from the upper part of the washing machine body 1 by a spring 27 having an anti-vibration function, and the lower part is suspended by a shock absorber, thereby damping the vibration of the water tank 4. It is a configuration to make it.
A plurality of installation legs are provided on the bottom surface of the main body 1 of the washing machine, and the main body 1 is supported by these installation legs.

An operation panel 20 provided with a panel input section 20a such as a run / stop switch and various operation switches, and a display section 20b such as a display lamp is provided on an upper portion of a front surface of the main body 1 of the washing machine. . A control device 2 for electrically controlling the washing machine is provided inside the operation panel 20.
1, and a signal line from the operation panel 20 is connected.

The controller 21 is connected to a door switch for detecting the opening and closing of the door 23, a pressure switch 24 for detecting the water level in the water tank 4 by water pressure, and an output signal line of a tachometer 16a for detecting the rotation of the motor 16. You.

FIG. 3 is a circuit block diagram of the control device 21 of the drum type washing machine. As shown in FIG. 3, the control device 21 mainly includes a power supply unit 30, a display unit 20b, a panel input unit 20a, a signal input unit 31 such as a door switch, a control unit 32, an output unit 33, and a load unit 34. .

The power supply unit 30 is supplied with commercial power from the outlet plug 35 via the power switch 36, transforms the AC power, and rectifies and outputs a DC current for control and oscillates clock pulses. I do. Display unit 20b
Sounds a buzzer in addition to the display lamp.

The control unit 32 is mainly composed of a microcomputer (hereinafter, referred to as a microcomputer), and performs a determination and a command regarding the operation of the washing machine, and has a calculation and storage unit. The output unit 33 includes a semiconductor device including a triac that outputs a drive signal in accordance with a command from the control unit 32.

The load section 34 is activated by the drive signal of the output section, and is connected to the drying unit 13, the water supply valve 6, and the drainage pump 1.
1, a door lock mechanism (operation solenoid or the like) 37, and an operation relay 38 (coil 38a, contact 38b) of the drum driving motor 16 are provided.

Next, the operation of the drum-type drying and washing machine configured as described above will be described. The operations from basic washing to drying are almost the same as those of a conventional drum type washing machine.

Next, when drying delicate clothes such as dry mark clothes (hereinafter abbreviated as dry clothes),
When the dry clothes drying course is selected by the operation key and started, the drum 2 remains stopped, the weak heater of the heater is energized, and the air heated by the heater 28 is sent into the drum 2 by the blower fan 19. Then, the moisture becomes moisture by passing through the wet laundry in the drum 2 and enters the heat exchanger 7 through the exhaust port 41 of the water tub 4 through the exhaust duct 18.

Then, moisture is condensed by heat exchange when the jet of cold water supplied from the water supply valve 6 through the water pipe line 62 comes into contact with the moisture. The cooled dry air is sent to the blower fan 19 again, reheated by the heater 28, and recirculated to the drum 2. When the temperature in the drum 2 reaches a predetermined value (a temperature value lower than usual), the heater 28 is turned off.
When the temperature drops to a predetermined temperature, the heater 28 is energized again. This operation is repeated for a predetermined time, the operation is terminated at a predetermined time by a timer, and after the air blowing operation is performed, the operation ends.

In the above case, the basic operation is the same as described above, but the rotation control of the drum 2 may be made different. In this case, after the start, the drum 2 remains stopped, but after a predetermined time elapses, The drum 2 is rotated for 1/30 or less of the stop time. The rotation speed is controlled to be lower than the normal rotation speed of the drum, and the left and right are alternately reversed. This may be repeated while the heater 28 is energized to dry the dry clothes.

When delicate garments such as dry mark garments (hereinafter abbreviated as dry garments) are continuously operated for washing and drying, the dry garment washing and the drying course are selected by operating keys. Thereafter, the display automatically prompts the user to pause temporarily, take out the clothes once, refold them, and then proceed to the drying process. Once the door is opened, the garment is taken out, folded again, put into the drum 2 again, and the start switch is not pressed until the start of the drying process. The basic operation of the drying process is the same as described above.

[0032]

Since the drum type dryer / selector of the present invention has the above-mentioned configuration, the inventions according to the first and second aspects of the present invention allow delicate garments such as dry mark garments to be used on the exclusive course of the present invention. In dry operation, the rotating drum is stopped compared to the normal course, so there is no mechanical force acting on the clothes.Therefore, wrinkles, shrinkage and cloth damage on the clothes are reduced at the time of dry finishing, and delicate clothes Damage is kept low, and drying of delicate clothes, which has been impossible in the past, becomes possible.

According to the third aspect of the present invention, the ON time of the rotary drum is set to be very short as compared with the OFF time, and the drum is rotated intermittently. Since the time for acting on the clothes can be kept short, the wrinkles of the laundry at the time of finishing the drying can be reduced, and the trouble such as ironing can be reduced.

According to the fourth aspect of the present invention, the mechanical force acting on the garment can be further reduced by setting the drum rotational speed to a lower value. According to the fifth aspect of the present invention, the mechanical force acting on the garment can be further reduced by restricting the rotation angle of the drum to a small value.

Further, according to the invention of claim 6, by rotating the drum alternately left and right, uniform and delicate clothes can be dried. Furthermore, the invention according to claim 7 is capable of drying at a low temperature suitable for delicate clothing by turning on / off the heater when the temperature in the drum reaches a predetermined value. The effect can be reduced.

Further, the inventions according to claims 8 and 9 can improve the operability and clarify that the special course of the present invention is operated. According to the tenth aspect of the present invention, by providing a display means for automatically suspending the laundry at the end of the washing and prompting the user to take out the clothes and refold the clothes, and then proceed to the drying step, the user can reliably perform the drying step. By folding the clothes before moving, wrinkles and shrinkage of the sweater or the like can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional front view showing the internal structure of a drum type washing machine according to the present invention.

FIG. 2 is a schematic vertical sectional side view showing the internal structure of the drum-type drying and washing machine of the present invention.

FIG. 3 is a block diagram of a control device of the drum type washer of the present invention.

FIG. 4 is an explanatory view of a full display state of an operation panel of the drum-type drying and washing machine of the present invention.

FIG. 5 is an explanatory diagram of an operation panel display during driving without selecting a dedicated course for drying delicate clothes such as a dry mark of the drum-type drying washing machine of the present invention.

FIG. 6 is an explanatory diagram of an operation panel display during operation of a dedicated course for drying delicate clothes such as a dry mark of the drum-type drying washing machine of the present invention.

FIG. 7 is an explanatory diagram of an operation panel display during operation of a dedicated course for continuously operating delicate clothes such as a dry mark of a drum type washing and washing machine according to the present invention for washing and drying.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Washing machine main body 2 Drum 4 Water tank 40 Selection key of exclusive course for drying delicate clothes such as dry mark 41 Display during operation of exclusive course for drying delicate clothes such as dry mark

Claims (10)

[Claims] 1. A rotating drum that freely rotates about a horizontal axis in a water tank disposed in an outer box and stores laundry therein, and is used for washing, rinsing, dehydrating, drying, and the like. A drum-type washing machine in which a series of washing operations are performed in a single drum, wherein a dedicated course for drying delicate clothes such as dry mark clothes is provided in a drying step. 2. The drum type washing machine according to claim 1, wherein the exclusive course performs the drying operation while the rotation of the drum is stopped. 3. The above-mentioned exclusive course has a drum rotation ON / OFF.
2. The drum type washing machine according to claim 1, wherein the drying operation is performed while the OFF time ratio is controlled to 1/300 or less and intermittently rotated. 4. The drum type washing machine according to claim 3, wherein the rotation speed of the drum of the exclusive course is set lower than the rotation speed in a washing step. 5. The exclusive course has a drum rotation angle of one.
The drum type washing machine according to claim 3 or 4, wherein the angle is set to 80 degrees or less. 6. The drum type washing machine according to claim 3, wherein the dedicated course rotates the drum alternately left and right. 7. The exclusive course according to claim 3, wherein when the temperature in the drum reaches a predetermined value, the heater is turned on / off and drying is performed for a set time. Or one drum type washing machine. 8. The exclusive course includes a means for selecting a dedicated course for drying delicate clothes, and a display means for indicating that a dedicated course for drying delicate clothes has been set. The drum type washing machine according to any one of claims 1 to 7, wherein the washing machine is a drum type washing machine. 9. A water tank arranged in an outer box, which is rotatable about a horizontal axis and has a rotating drum for storing laundry therein, and is used for washing, rinsing, dehydrating, drying and the like. A drum-type drying washing machine with a dedicated course that performs a series of washing operations in one drum and continuously performs washing and drying of delicate clothes, dedicated to running continuously from washing to drying of delicate clothes A drum-type drying and washing machine comprising means for selecting a course and display means for indicating that a dedicated course has been set. 10. The exclusive course according to claim 9, further comprising display means for automatically stopping at the end of the washing, prompting the user to take out the clothes once, refold the clothes, and then proceed to the drying step. Drum type washing machine.