JP3073635B2 - Washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine, and more particularly to a washing machine with improved operability at the start of washing.

[0002]

2. Description of the Related Art In a fully automatic washing machine, for example, in addition to a power switch and a start switch provided on an operation panel, a lid switch for detecting the opening and closing of a lid of a washing tub also serving as a dehydrating tub, and detecting a laundry amount and a water level. Sensors are provided in each part of the main body of the washing machine. ON / OFF of these switches
The OFF information and the detection data of the various sensors are input to a microcomputer built in the main body of the washing machine, and the microcomputer controls the operation of the main body of the washing machine based on the information.

FIG. 27 shows a control operation of a microcomputer in a conventional washing machine. First, when the lid of the washing tub is opened, it is determined in step # 5M that the lid is open based on the lid opening detection signal output from the lid switch, and then in step # 10M, the laundry is put into the washing tub. When the ON signal of the power switch is input in step # 15M, the power-on mode is set in step # 20M.

If the standard course is selected in step # 25M, the start switch is turned on in step # 30M, and the washing machine body starts washing from that point. When a course other than the standard course is selected, a necessary operation corresponding to the purpose is performed in step # 35M, and then washing is started via step # 30M. Note that the standard course is a standard operation control program preset in the microcomputer.

[0005]

As described above, the conventional washing machine is usually in the power-off mode, and when the power switch is pressed, the microcomputer determines that the power is on and the power-on mode is set. Specifications. Therefore, unless the user operates the power switch, the power-on mode in which the standard course and other control programs can be executed cannot be set. However, at the time of washing, the user usually carries a large amount of laundry, and both hands are usually occupied. Therefore, there is a problem that it is difficult to operate the power switch.

A lid switch is provided as a safety measure to prevent the risk of hands or arms getting caught in the laundry or electric shock even if the lid is opened carelessly while the washing tub or the pulsator is rotating. Conventionally, this lid switch is made up of mechanical switch parts, so it is inevitable that failures such as contact failures will occur, and it is not necessarily sufficient as a safety measure. In addition, it was difficult to reduce the size of the components.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. The power-on mode is set by simply opening the lid of the washing tub, and the lid switch is less likely to fail. It is an object of the present invention to provide a washing machine capable of ensuring sufficient safety even in the event of a breakdown.

[0008]

According to the present invention, there is provided a washing machine having a washing tub, control means for controlling the operation of the washing machine, and a lid for opening and closing the washing tub. And a lid open / close detecting means for detecting the open / closed state of the lid and outputting a detection signal to the control means, and operating the power-on mode in a state where the power-on mode is set. A start switch for starting the washing is provided.

The control means sets a power-on mode when a lid open detection signal is input from the lid open / close detection means, and sets a power switch when the start switch has not been operated for a predetermined time after the power-on mode is set. It has a function of returning to the power-off mode.

Further , the lid opening / closing detecting means is constituted by a plurality of lid opening / closing detection switches, and the control means is configured to detect the opening / closing of the lid by detecting at least one of the plurality of lid opening / closing detection switches different from others. Is output, or when at least one lid open / close detection switch is out of order, the lid open error is determined . Thereby , excellent safety can be ensured. This structure
When the lid open / close detection switch is
Configuration with switches and magnets,
And eliminates contact failures that are unique to mechanical switches.
Reliability and safety can be improved.

[0011]

According to the above arrangement, when the lid is opened by the lid opening / closing detecting means, the control means automatically sets the power-on mode. Therefore, the user only needs to open the lid to put the laundry into the washing tub or the like, and the power-on mode is set without pressing the power switch, so that even when both hands are blocked by the laundry or the like. Driving such as washing can be executed without trouble.

Further, since the lid open / close detecting means is constituted by a plurality of lid open / close detecting switches, for example, when one lid open / close detecting switch fails or outputs a signal different from the other, the control means opens the lid open / close detecting switch. Because of the determination as an error, high reliability and safety are ensured.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIG. 1 shows the appearance of a washing machine according to the present embodiment. In this figure, 1 is an outer tub constituting the outer shell of the washing machine main body, 2 is a washing tub serving also as a dehydration tub provided in the outer tub 1, and 3 is arranged facing the inner bottom of the washing tub 2. The pulsator 4 is a drainage hose for draining water in the washing tub 2 to the outside, and 5 is an upper surface plate disposed around the upper end opening of the washing tub 2.

A water supply valve 6 is provided at a rear portion of the upper surface plate 5, and an operation panel portion 7 is provided at a front portion thereof. Is provided with a control circuit 8 for controlling the operation of the main body of the washing machine. 9 is a lid for opening and closing the washing tub 2,
It is provided so as to be openable and closable on the upper surface plate 5, and the opening and closing thereof are configured to be detected by a lid switch 10 provided at a rear portion of the upper surface plate 5.

FIG. 2 shows a specific configuration of the control circuit 8.
As shown in this figure, the control circuit 8 includes a microcomputer 11 for instructing operation control of the main body of the washing machine, and a control circuit 8.
And a power supply circuit 12 for supplying driving power to each section.

On the input side of the microcomputer 11,
Turn on / off the power of the lid switch 10 and the washing machine body
A power switch 13 for starting the washing operation, a start switch 14 for starting the washing operation, a plurality of operation control programs preset in the microcomputer 11 and an operation switch group 15 for selecting a water level in the washing tub and the like. Is provided.

On the output side of the microcomputer 11, a display section 16 for displaying the contents of each course and the progress of the course, and a switching circuit 17 for controlling each load are provided. FIG. 3 shows the operation panel unit 7. As shown in this figure, a power switch 13, a start switch 14, an operation switch group 15, and a display unit 16 are arranged on the operation panel unit 7 with an appropriate layout.

When the control circuit 8 sends a signal from the lid switch 10 to detect that the lid 9 is open,
Set the power-on mode. Further, when the start switch 14 has not been operated for a certain period of time after the setting of the power-on mode, the operation returns to the power-off mode.

FIG. 4 is a flowchart showing the steps in the first embodiment of the present invention. In this figure, step # 10
When the power switch 13 is pressed in step # 115 from the power-off mode of step 5, the power-on mode in which the main body of the washing machine is energized is set. In step # 110, the power switch 1
When the lid 9 is opened when the laundry is put into the washing tub 2 without pressing the lid 3, the lid switch 10 detects the lid open state. If the microcomputer 11 determines that the lid is opened based on the detection signal, the microcomputer 11 automatically sets the power-on mode in step # 120.

After the laundry is put into the washing tub 2 in step # 125, when the standard course is selected in step # 130, the washing operation is started only by pressing the start switch 14 in step # 135. Operation switch group 1
If the user selects a course other than the standard course by operating No. 5, the necessary operation corresponding to the purpose is performed in step # 140, and then washing is started via step # 135.

In step # 135, the start switch 14
Is not operated, the time is measured by, for example, a timer built in the microcomputer 11 in step # 145, and after a lapse of a predetermined time, the mode is returned to the power-off mode in step # 105.

As described above, in the first embodiment, the power-on mode is automatically set by opening the lid 9 without operating the power switch, which is conventionally required, and then the start switch 14 is pressed. Just start washing. When the start switch 14 has not been operated for a certain period of time, the power is automatically turned off. Therefore, in a standard course, washing can be performed by an extremely simple operation of pressing the start switch 14.

(Second Embodiment) FIGS. 5 to 7 show a second embodiment of the present invention.
An example will be described. In these drawings, portions having the same configuration and operation as those of the first embodiment are denoted by the same reference numerals, and description thereof will be omitted to avoid duplication. In this embodiment, as shown in FIGS. 5 and 6, instead of the lid switch 10 for detecting opening and closing of the lid 9 in the first embodiment,
An optical element 18 is provided.

That is, the optical element 18 is disposed at an appropriate position on the upper surface plate 5 where the lid 9 overlaps with the lid closed. Therefore, the lid 9
When the is closed, the indoor light and the like are blocked by the lid 9, and the microcomputer 11 determines that the lid is closed based on the lid closed detection signal sent from the optical element 18. Similarly, when the lid 9 is opened, indoor light or the like enters the optical element 18, and the microcomputer 11 receives the lid-opening detection signal sent from the optical element 18.
Is determined to be the lid open.

In the process flow chart of FIG. 7, this embodiment is the same as the flow of FIG. 4 except that the lid switch 10 in step # 110 of FIG. . Therefore, pressing the power switch 13 or the power switch 13
Even if the microcomputer 11 determines that the lid is opened by a signal from the optical element 18 by opening the lid 9 of the washing machine when the laundry is put into the washing tub 2 without pressing the button, the power is automatically turned on. The mode is set, and if the course is a standard course, washing can be started by simply pressing the start switch 14 next. If no switch operation has been performed for a certain period of time, the mode returns to the power-off mode.

As described above, in the second embodiment, since the optical element 18 is used instead of the conventional mechanical switch, the size can be reduced, and the contact failure unique to the mechanical switch can be eliminated, so that the reliability and safety can be improved. Can be achieved.

(Third Embodiment) FIGS. 8 to 11 show a third embodiment of the present invention. In these figures, portions having the same structure and operation as those of the first and second embodiments are denoted by the same reference numerals, and description thereof will be omitted to avoid duplication. In this embodiment, as shown in FIGS. 8 and 9, the lid opening / closing detecting means is composed of a lid switch 10 and an optical element 18.

In this case, when one of the lid switch 10 and the optical element 18 outputs detection information different from that of the other when opening and closing the lid 9, or when one of the lids 10 is out of order, Judge as a lid open error. That is,
As shown in the flowchart of FIG.
At 5, the optical element 18 first determines whether the lid 9 is open or closed. If the lid is open, the lid switch 10 determines whether the lid 9 is open or closed in the next step # 210. If the lid switch 10 also determines that the lid is to be opened, step # 215
For the first time, the microcomputer 11 determines that the lid is open.

Step # 205 and step # 2
If both the detection signals of the optical element 18 and the lid switch 10 are both closed at 20, the microcomputer 11 determines that the lid is closed at step # 225. Further, when it is determined that the detection signals of the optical element 18 and the lid switch 10 are different from each other, or when one of them is out of order, etc.
At 230, the microcomputer 11 determines that a lid opening error has occurred.

In the third embodiment, the lid switch 1
0 can be mounted at substantially the same position as that of the first embodiment shown in FIG. 1, and the optical element 18 can be mounted at almost the same position as that of the second embodiment shown in FIG. It may be.

In the process flow chart of FIG. 11, steps # 310 to # 330 in this embodiment correspond to the flow chart of FIG. 10 described above, and steps # 305 and # 335 are the same as those in the flow chart of FIG. Step # 105 and Step # 1
20 and later.

Therefore, even when the power switch 13 is pressed or the power switch 13 is not pressed, the lid 9 of the washing machine is opened when the laundry is put into the washing tub 2 or the like.
If the microcomputer 11 determines that the lid is open based on the signals from the optical element 18 and the lid switch 10, the power-on mode is automatically set. In the case of the standard course, the laundry can be started by simply pressing the start switch 14 next. If no switch operation has been performed for a certain period of time, the mode returns to the power-off mode.

As described above, in the third embodiment, the opening / closing of the lid 9 is determined by the lid switch 10 which is a mechanical switch and the optical element 18, so that when both are different from each other, or at least one of them is determined. In the event of a failure, it is determined that a lid opening error has occurred, and the vehicle can be stopped in a safe mode in any case.

(Fourth Embodiment) FIGS. 12 and 13 show a fourth embodiment of the present invention. In these figures, portions having the same structure and operation as those of the first to third embodiments are denoted by the same reference numerals, and description thereof will be omitted to avoid duplication. In this embodiment, the lid opening / closing detecting means is connected to the lid switch 10.
Instead of the reed switch 19 and the magnet 20. That is, the reed switch 19 is
The magnet 20 is attached to the rear surface of the lid 9 facing the reed switch 19 when the lid 9 is closed.

In this configuration, when the lid 9 is closed, the reed switch 19 is turned on by the magnetic force of the magnet 20.
Then, the microcomputer 11 of the control circuit 8 is turned on.
When the signal is input, the microcomputer 11 determines that the lid is closed. When the lid 9 is opened and the distance between the magnet 20 and the reed switch 19 becomes equal to or greater than a certain value, the reed switch 19 is turned off, and an OFF signal is input to the microcomputer 11 so that the microcomputer 11 Determines that the lid is open.

As described above, in the fourth embodiment, the reed switch 19 and the magnet 20 are replaced with the conventional mechanical switch.
By using the above, downsizing can be achieved and there is no contact failure peculiar to the mechanical switch, so that excellent reliability and safety can be obtained as in the above embodiments.

(Fifth Embodiment) FIGS. 14 to 17 show a fifth embodiment of the present invention. In these figures, portions having the same configuration and operation as those of the first to fourth embodiments are denoted by the same reference numerals, and description thereof will be omitted to avoid duplication. In this embodiment, as shown in FIG. 14 and FIG.
In addition to the lid open / close detection switch using the reed switch 19 and the magnet 20, the optical element 18 can be used to determine whether the lid 9 is open or closed.

In this case, the control circuit 8 determines whether one of the lid open / close detection switch by the reed switch 19 and the magnet 20 and the optical element 18 outputs detection information different from that of the other, or If one of them is out of order, it is determined that a lid opening error has occurred. As described above, in the flowchart of FIG. 15 showing the flow of the opening / closing of the lid and the error determination, the mechanical lid switch 1 of step # 210 and step # 220 in the third embodiment shown in FIG.
10 is the same as the flowchart in FIG. 10 except that 0 is changed to the reed switch 19 in step # 210a and step # 220a.

Accordingly, the opening / closing of the lid 9 is determined by the optical element 18.
The microcomputer 11 determines that the lid is open for the first time in the lid open determination. Also,
If the signals from the optical element 18 and the reed switch 19 are also the lid closed, the microcomputer 11 determines that the lid is closed. When the signal from the optical element 18 and the signal from the reed switch 19 are determined differently, or when a failure occurs in one of them, the microcomputer 11 determines that the lid is open.

As described above, in the fifth embodiment, the opening / closing of the lid 9 is determined by the reed switch 19 and the optical element 18, so that when both of them make different determinations or when a failure occurs, it is determined that a lid opening / closing error has occurred. In any case, it can be stopped in a safe mode.

In the process flow chart of FIG. 17, steps # 310 to # 330 in this embodiment correspond to the flow chart of FIG. 16 described above, and the reed switch 19 of step # 315a and step # 320a corresponds to FIG. Step # in the flowchart
The flow of the other operations is the same as that of FIG. 11 except for the change from the lid switch 10 in step 310 and step # 320.

Therefore, even when the power switch 13 is pressed or the power switch 13 is not pressed, the lid 9 of the washing machine is opened when the laundry is put into the washing tub 2 or the like.
If the microcomputer 11 determines that the lid is open based on signals from the optical element 18 and the reed switch 19, the power-on mode is automatically set. In the case of the standard course, washing can be started by simply pressing the start switch 14 next. When there is no switch operation for a certain period of time, the mode returns to the power-off mode.

(Sixth Embodiment) FIGS. 18 to 20 show a sixth embodiment of the present invention. In these figures, portions having the same structure and operation as those of the first to fifth embodiments are denoted by the same reference numerals, and description thereof is omitted to avoid duplication. In this embodiment, as shown in FIGS. 18 and 19,
In addition to the lid switch 10, the lid 9 can be determined to be open / closed by a lid open / close detection switch including a reed switch 19 and a magnet 20.

In this case, the control circuit 8 determines whether one of the lid open / close detection switch by the reed switch 19 and the magnet 20 and the lid switch 10 outputs detection information different from the other, or If one of them is out of order, it is determined that a lid opening error has occurred.

That is, first, the lid 9 is opened / closed by the reed switch 19, and if the lid is open, then the lid 9 is opened / closed by the lid switch 10; Judge that the lid is open. If the signals from the reed switch 19 and the lid switch 10 are also the lid closed, the microcomputer 11
Determines that the lid is closed. Reed switch 19 and lid switch 1
When the signals from 0 make different judgments, or when any one of them fails, the microcomputer 11 judges that the lid opening error has occurred.

The process flow chart of FIG. 20 corresponds to that of the fifth embodiment of FIG.
In the present embodiment, the optical element 18 of step 310 is step # 310b.
Is changed to the reed switch 19, and the reed switch 19 in step # 315a and step # 320a in FIG. 17 is replaced with step # 315b and step # 320 in this embodiment.
Only the lid switch 320b is changed to 320b, and the other operation flow is the same as that in FIG.

Accordingly, when the power switch 13 is pressed, or when the laundry is put into the washing tub 2 without pressing the power switch 13, the lid 9 is opened and the micro switch is activated by signals from the reed switch 19 and the lid switch 10. If the computer 11 determines that the lid is open, the power-on mode is automatically set. If the course is a standard course, washing can be started by simply pressing the start switch 14 next. When there is no switch operation for a certain period of time, the mode returns to the power-off mode.

(Seventh Embodiment) FIGS. 21 to 24 show a seventh embodiment of the present invention. In these figures, portions having the same structure and operation as those of the first to sixth embodiments are denoted by the same reference numerals, and description thereof will be omitted to avoid duplication. In this embodiment, as shown in FIGS. 21 and 22,
In addition to the optical element 18 and the lid switch 10, the lid 9 is configured to be able to determine whether the lid 9 is opened or closed by a lid open / close detection switch that includes a reed switch 19 and a magnet 20.

In this case, as shown in the flow chart of FIG. 23, the opening / closing of the lid 9 is first determined by the optical element 18 in step # 405, and if the lid is determined to be open, the reed switch 19 is then determined in step # 410. The open / close determination of the lid 9 is performed according to the above.
5, the lid switch 10 is used to determine whether the lid 9 is open or closed. Similarly, in the lid open determination, the microcomputer 11 determines that the lid is open in step # 420.

Steps # 405 and # 42
If the signals from the optical element 18, the reed switch 19, and the lid switch 10 are also the lid closed in step 5 and step # 430, the microcomputer 11 determines that the lid is closed in step # 435. Further, Step # 405 to Step #
If any one of the signals from the optical element 18, the reed switch 19, and the lid switch 10 is determined to be different at 430, or if any of them is out of order, the process proceeds to step # 44.
0 is a washing machine characterized in that the microcomputer 11 has a function of determining a lid opening error by the microcomputer 11.

In the process flowchart of FIG. 24, in this embodiment, steps # 510 to # 540 correspond to the flowchart of FIG. 16 described above. Steps # 505 and # 545 and thereafter are the same as the flow of step # 335 and subsequent steps in the flowchart of FIG. 20 of the sixth embodiment.

Therefore, even when the power switch 13 is pressed or the power switch 13 is not pressed, the lid 9 of the washing machine is opened when the laundry is put into the washing tub 2 or the like.
If the microcomputer 11 determines that the lid is open based on signals from the optical element 18, the reed switch 19, and the lid switch 10, the power-on mode is automatically set. Can start. When there is no switch operation for a certain period of time, the operation returns to the power-off mode.

As described above, according to the seventh embodiment, the lid 9
Is determined by the three members of the optical element 18, the reed switch 19, and the lid switch 10, so that when any one performs a different determination, or when any one or all of the failures occur, it is determined that the lid is open error. In any case, it can be stopped in a safe mode.

(Eighth Embodiment) FIGS. 25 and 26 show an eighth embodiment of the present invention. In these figures, portions having the same structure and operation as those of the first to seventh embodiments are denoted by the same reference numerals, and description thereof will be omitted to avoid duplication. In this embodiment, in addition to the configuration of the first embodiment, a switch that allows the user to select whether or not to use the power-on mode function when the lid is opened as required is mounted. In FIG. 25, reference numeral 21 denotes a power-on mode setting prohibition switch when the lid is opened, which is set on the operation panel section 7.

In the process flow chart of FIG. 26, after the lid switch 10 is determined to be open in step # 110, the power mode setting inhibition switch 2 when lid is opened is determined in step # 110c.
If 1 is ON, the power switch 13 is ON for washing.
/ OFF operation. The other flow is the same as the flowchart of the first embodiment in FIG.

Therefore, the power switch 13 is pressed to enter the power-on mode. Also, when the laundry is put into the washing tub 2 without pressing the power switch 13, the lid 9 of the washing machine is used.
When the microcomputer 11 determines that the lid is opened based on the signal from the lid switch 10 by opening the power switch, the power-on mode is automatically set.
Next, the user can select whether or not to use the function of the first embodiment in which washing can be started simply by pressing the start switch 14 by turning on / off the power mode setting inhibition switch 21 when the lid is opened. is there.

Also, in this case, when there is no switch operation for a predetermined time, the mode returns to the power-off mode. As described above, according to the eighth embodiment, the user can select whether or not to perform the power-on mode function when the lid is opened as necessary.

[0058]

As described above, when using the washing machine of the present invention, the power-on mode is automatically set by opening the lid of the washing machine without the user operating the power switch. You can start washing just by pressing the start button. In addition, when there is no switch operation for a certain period of time, the washing machine has a function of automatically turning off the power. In a standard course, washing can be performed just by pressing a start switch.

Accordingly, the user only needs to open the lid to put the laundry into the washing tub or the like, and the power-on mode is set without pressing the power switch, so that both hands are blocked by the laundry or the like. In such a case, it is possible to easily perform the operation such as washing without any inconvenience. Also, set the power-on mode.
Cover opening / closing detection means
And control means for opening and closing the lid.
At least one of the lid open / closed detection switches
Output at least one of the detection information
If two lid open / close detection switches are faulty,
And always stop in safe mode
High reliability can be obtained.

According to the second aspect, the lid opening / closing detection switch is provided.
Switch with an optical element, a reed switch, and a magnet.
If this is the case, the size can be reduced and the contact
Goods can be eliminated and reliability and safety can be improved .

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing the appearance of a washing machine according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing the control circuit.

FIG. 3 is a layout diagram illustrating an example of a layout of an operation panel unit.

FIG. 4 is a process flowchart in the first embodiment.

FIG. 5 is an overall perspective view showing the appearance of a washing machine according to a second embodiment of the present invention.

FIG. 6 is a block diagram showing the control circuit.

FIG. 7 is a process flowchart in a second embodiment.

FIG. 8 is an overall perspective view showing the appearance of a washing machine according to a third embodiment of the present invention.

FIG. 9 is a block diagram showing the control circuit.

FIG. 10 is a flowchart showing the flow of lid opening / closing and error determination.

FIG. 11 is a process flowchart in a third embodiment.

FIG. 12 is an overall perspective view showing the appearance of a washing machine according to a fourth embodiment of the present invention.

FIG. 13 is a block diagram showing the control circuit.

FIG. 14 is an overall perspective view showing the appearance of a washing machine according to a fifth embodiment of the present invention.

FIG. 15 is a block diagram showing the control circuit.

FIG. 16 is a flowchart showing the flow of lid opening / closing and error determination.

FIG. 17 is a process flowchart in a fifth embodiment.

FIG. 18 is an overall perspective view showing an appearance of a washing machine according to a sixth embodiment of the present invention.

FIG. 19 is a block diagram showing the control circuit.

FIG. 20 is a process flowchart in a sixth embodiment.

FIG. 21 is an overall perspective view showing the appearance of a washing machine according to a seventh embodiment of the present invention.

FIG. 22 is a block diagram showing the control circuit.

FIG. 23 is a flowchart showing the flow of lid opening / closing and error determination.

FIG. 24 is a process flowchart in the seventh embodiment.

FIG. 25 is a layout diagram showing an example of a layout of an operation panel unit of a washing machine according to an eighth embodiment of the present invention.

FIG. 26 is a process flowchart in the eighth embodiment.

FIG. 27 is a process flowchart for a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer tub 2 Washing and dewatering tub 3 Pulsator 4 Drain hose 5 Top plate 6 Water supply valve 7 Operation panel part 8 Control circuit 9 Lid 10 Lid switch 11 Microcomputer 13 Power switch 14 Start switch 15 Operation switch group 16 Display part 17 Switching circuit 18 Optical element 19 Reed switch 20 Magnet 21 Power-on mode prohibition switch

Claims (2)

(57) [Claims] 1. A washing machine main body having a washing tub, control means for controlling the operation of the washing machine main body, a lid for opening and closing the washing tub, and an open / closed state of the lid is detected to generate a detection signal. A lid open / close detection unit that outputs to the control unit, and a start switch that causes the washing machine main body to start washing through the control unit by operating in a state where a power-on mode is set, and the control unit includes: The power on mode is set when a lid open detection signal is input from the lid opening / closing detection means, and the operation returns to the power off mode when the start switch has not been operated for a predetermined time after the power on mode is set. in washing machines you, the lid opening
The close detecting means is constituted by a plurality of lid open / close detecting switches.
And the control means controls the opening and closing of the lid
At least one of the lid open / closed detection switches is
When different detection information is output, or at least one
Lid open error when the lid open / close detection switch is broken
A washing machine characterized in that it is determined that: Wherein said cover opening and closing detecting means, an optical element, reed
The washing machine according to claim 1, wherein the washing machine comprises a switch and a magnet .