JPH01300992A - Washing machine - Google Patents

Abstract

PURPOSE:To eliminate the possibility of wetting washed objects under drying even if any incorrect operation happens, by operating a hot air generating set continuously without opening a feed valve, even if feed water start operation is performed under the working of the hot air generating set. CONSTITUTION:Based on feed water start operation at an operating section 4, a feed valve 9 is opened and water is fed to a washing tank 2. Besides, a ventilation flue 12 is led into the washing tank 2 so that hot air generated by a hot air generating set 11 may be fed for drying washed objects 24 contained in the washing tank 2. Besides, by an operation controlling means 16 through a microcomputer, the working of the hot air generating set 11 is continuously performed without opening the feed valve 9, even if the feed water start operation is performed under the working of the hot air generating set 11. As this result, the washed objects can be dried in the washing tank, and water can be prevented from being fed into the washing tank under the drying operation, and there is no possibility of wetting the washed objects under drying even if incorrect operation or the like is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Invention 1] (Industry-1 Field of Application) The present invention relates to a washing machine capable of drying laundry in a washing tub.

(Prior art) In recent years, a hot air generating device consisting of a blower fan and a heater has been installed inside the outer box, and the hot air generated by this hot air generating device is guided into the washing tub to dry the laundry inside the washing tub. There are also washing machines that can do this. In this one,
After washing and spin-drying, the small items of laundry are stored in a hanging state in the washing tub, and the drying operation timer provided on the control unit is operated to supply warm air into the washing tub for a predetermined period of time. It is designed to dry things, and has the advantage of taking up less space and being cheaper than using a dedicated dryer.

(Problem to be Solved by the Invention) By the way, for example, a two-tub washing machine is configured so that the washing operation is automatically started from water supply to the washing tub based on the ON operation of a switch for starting the washing operation. There are models available. For this reason, with such models, if you accidentally turn on the switch to start the washing operation while drying the laundry in the washing tub, water supply to the washing tub will start even during the drying operation, and the drying will be interrupted. There was a risk that the laundry that was being washed would get wet.

The present invention has been made in view of the above circumstances, and its purpose is to provide a washing machine which can also dry laundry in the washing tub and which can prevent water from being supplied into the washing tub during drying operation. There is something to do.

[Configuration of the Invention (Means for Solving the Problems) The washing machine of the present invention is equipped with a water supply valve that opens and supplies water to the washing tub based on an operation to start water supply in the operation section, and includes a hot air generator and a water supply valve. , a ventilation passage is provided to guide the hot air generated by the hot air generator into the washing tub for drying the laundry stored in the washing tub, and the water supply start operation is performed while the hot air generator is in operation. The feature a is that an operation control means is provided that allows the hot air generator to continue operating without opening the water supply valve even if there is a water supply valve.

(Function) According to the above means, the laundry stored in the washing tub can be dried by the warm air supplied from the hot air generator through the ventilation passage. Even if you accidentally start the water supply while this hot air generator is operating, the operation control means will open the water supply valve and you can start washing! Water is prevented from being supplied to the tank.

(Example) An example in which the present invention is applied to a two-tub automatic washing machine will be described below with reference to the drawings.

First, in FIG. 1 showing the overall configuration of a washing machine according to this embodiment, 1 is an outer box, inside which a washing tub 2 and a dehydrating tub 3 are arranged side by side. Aquarium 3
A stirring blade 4 and a dehydrating cylinder 5 are respectively disposed inside. A washing motor 6 and a dehydration motor 7 are disposed at the bottom of the outer box 1, and the stirring TA4 and dehydration R5 are rotated by applying electricity to these motors, respectively. 8
is a lid for opening and closing the dehydration tank 3. Reference numeral 9 denotes a water supply valve disposed inside the operation box 1a, which opens when energized to supply water into the washing tub 2.

A drain valve 10 (shown only in FIG. 3) for draining water from the inside of the washing tub 2 is also provided inside the outer box 1.

11 is a warm air generator disposed at the bottom of the outer box 1, which includes a blower fan lla and a heater 11b (third
(shown only in the figure) is disposed within a casing, and is configured to generate hot air when energized. And said wash? A hot air outlet 2a is provided in the L portion of the ld tank 2, and this hot air outlet 2a and the hot air outlet of the hot air generator 11 are provided in the outer box 1 so as to extend in the vertical direction. The hot air generated by the hot air generator 11 is guided into the washing tub 2 through a ventilation path 12 formed of a duct. 13 is a hanger, which is removably attached to the upper part of the inside of the washing tub 2.

Now, 14 is an operation section provided on the front side of the operation box 1a, and as shown in FIG. 15 for the user to select and start various washing operation modes.

The operation switch 5 is connected to a microcomputer 16 shown in FIG. 3, and executes and controls processes such as washing, dehydration, and drying according to a predetermined program based on the operation of the operation switch 15 on the operation unit 14. It looks like this. Here, as shown in Figure 3,
The water supply valve 9, the drain valve 10, the forward rotation terminal of the washing motor 6,
The reverse terminal of the washing motor δ, the dehydration motor 7 and the hot air generator 11 are connected to triacs 17, 18, 19, 20.2, respectively.
The output terminal of the microcomputer 16 is connected to the gates of the triacs 17 to 22 to turn them on and off. This microcomputer 16 constitutes an operation control means, and includes the water supply valve 9. Washing motor 6, dewatering motor 7
In addition to controlling washing and dehydration operations in the same way as a general washing machine, as shown in Fig. 4, when the washing operation start switch 15a is turned on, it is first checked whether or not drying operation is in progress. If the drying operation is in progress, the on operation of the washing operation start switch 15a is invalidated and the drying operation is continued, and conversely, when the drying switch 15b is turned on, if the washing operation is in progress, that operation is invalidated. Equipped with functions.

Next, the operation of the -1-note structure bottom will be explained. To do laundry,
First, put the laundry and detergent into the washing tub 2, operate the operation switch 15, and set the strength and time of the water flow.
Turn on the washing operation start switch 15a. If the drying operation is not currently in progress, the microcomputer 16 executes the washing operation according to the program. In this washing operation, first, the triac 17 is turned on and the water supply valve 9 is energized and opened to supply water to the washing tub 2.

Therefore, turning on the washing operation start switch 15a corresponds to an operation to start water supply. After this, Triac 17
Detergent washing is performed by controlling on/off of the water supply valve 9, the drain valve 10, and the forward/reverse rotation of the stirring blade 4 by the forward/reverse rotation of the washing motor 6 according to a program.

A well-known washing operation such as rinsing is carried out. During this washing operation, even if the drying switch 15b is turned on,
The microcomputer 16 does not turn on the triac 22 to start the operation of the hot air generator 11.

After the washing operation is completed and the laundry is transferred to the dehydration barrel 5 of the dehydration l-1I13, the triac 21 is turned on based on the dehydration start operation in the operation section 14, and the dehydration motor 7 is energized for a predetermined period of time. Dehydration operation is performed.

Now, for example, in order to dry small items such as underwear after spin-drying, first attach the hanger 13 to the washing tub 2, and as shown in FIG. Store inside. Thereafter, the drying switch 15b is operated to set the drying time and to start the drying operation.

Based on this, the microcomputer 16 turns on the triac 22 to operate the hot air generator 11, and the generated hot air passes through the ventilation path 12 and is supplied into the washing tub 2 from the hot air outlet 2a. As a result, the drying operation continues for the set time and the laundry 24 is dried.

During this drying operation, the switch 15 for starting the washing operation was accidentally turned off.
Even if the water supply start operation is performed by turning on the water supply valve 9, the microcomputer 16 invalidates this operation, does not turn on the triac 17, and turns on the water supply valve 9.
Water is not supplied to the washing tub 2 which is open and drying is being performed.

According to this embodiment, the laundry 24 can be dried in the washing tub 2, and even if the water supply start operation is performed while the hot air generator 11 is in operation, the water supply/water valve is closed. Since the drying operation is continued without opening the laundry 24, there is no risk of getting the laundry 24 wet during the drying operation. Furthermore, since the hot air generator 11 does not operate during the washing operation, there is no risk of wasting power.

In the above embodiment, the ON operation of the washing operation start switch 15a is disabled while the hot air generator 11 is in operation, but in the case where the configuration of the operation part is different, the water injection rinsing start switch, It is also possible to disable the on operation of the water level adjustment switch or supplementary water supply switch, and in short, it is sufficient to disable the water supply start operation which is a condition for starting water supply to the washing tub.

In addition, the present invention can be implemented with appropriate modifications within the scope of the invention, such as being applicable to a fully automatic washing machine in which the washing tub also serves as a spin-drying tub.

[Effects of the Invention] As is clear from the above explanation, according to the washing machine of the present invention, laundry can be dried in the washing tub, and water supply to the washing tub can be stopped during the drying operation. This has an excellent effect in that even if there is an erroneous operation, there is no risk of the laundry getting wet while it is being dried.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is an overall longitudinal sectional front view, Fig. 2 is an enlarged view of the operating section, Fig. 3 is an electric circuit diagram of the main part, and Fig. 4 is an operational control. It is a flowchart for explaining the operation of the means. In the drawing, 2 is a washing tub, 9 is a water supply valve, 11 is a hot air generator, 12 is a ventilation passage, 14 is an operating section, 16 is a microcomputer (operation control means), and 24 is laundry. Figure 1

Claims (1)

[Claims] 1. A washing tub, a water supply valve that opens to supply water to the washing tub based on a water supply start operation in an operation section, a hot air generator, and a hot air generated by the hot air generator into the washing tub. A ventilation passage leading into the washing tub for drying stored laundry; and an operation of the hot air generator without opening the water supply valve even if the water supply start operation is performed while the hot air generator is in operation. A washing machine comprising an operation control means for continuously operating the washing machine.