JPH10272299A - Laundry equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS] In a laundry device for washing and drying laundry in a drum arranged rotatably about a rotation shaft provided in a substantially horizontal direction, a blowing means operates normally. When it is not, an error is displayed on the display means, and accurate information is conveyed to the user to urge the user to take corrective action, so that it can be repaired at an early stage. Eliminates and facilitates troubleshooting. SOLUTION: A hot air heated by a hot air heater 23 provided in a circulation path is blown by a blower fan into a rotatable drum contained in an outer tank and rotatably arranged, and heat exchange of hot air containing moisture in the drum is performed. The heat is exchanged by the heat exchanger, and the operating state of the blower fan is detected by the rotation speed detecting means 32. The control means 28 controls the operation of the blower fan and the hot air heater 23 and the like. If the blower fan is not operating while the hot air heater 23 is operating, the display means 31 displays an abnormality, and the hot air heater 23 is displayed. 23 operation is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laundry apparatus for washing and drying laundry in a drum arranged rotatably about a rotating shaft provided in a substantially horizontal direction.

[0002]

2. Description of the Related Art Conventionally, this type of laundry apparatus has been configured as shown in FIGS. Hereinafter, the configuration will be described.

[0003] As shown in the figure, a drum 1 has a large number of water passage holes 2 provided on the entire outer peripheral portion thereof, and is rotatably disposed in an outer tank 3. One end of a rotating shaft 4 is fixed to the rotation center of the drum 1, and a drum pulley 5 is fixed to the other end of the rotating shaft 4. The motor 6 is connected to the drum pulley 5 by a belt 7 and drives the drum 1 to rotate. A cover 8 is provided at the opening of the drum 1 so as to be freely opened and closed.

The outer tub 3 is suspended from the laundry machine body 9 by a spring body 10, and is supported by a vibration isolator damper 11 so that vibration during dehydration is not transmitted to the laundry machine body 9, and vibration during dehydration is also suppressed. A weight 12 for reduction is provided. The heater 13 heats the washing water in the outer tub 3. The control device 14 controls operations of the motor 6, the heater 13, and the like, and sequentially controls a series of processes such as washing, rinsing, spin-drying, and drying. The water supply valve 15 is for supplying water in the outer tub 3, and the drain pump 16 is connected to the outer tub 3 with a hose 17.
And drains the washing water in the outer tub 3.

The circulation path 17 circulates hot air containing moisture in the rotary drum 1, and includes a hose 18 connected to the side of the outer tub 3 and an inverted L-shaped heat exchanger connected to the hose 18. 19, a fan case 21 in which a blower fan (blower means) 20 is rotatably housed, and the fan case 21
And a duct 22 connecting the front surface of the rotary drum 1 to the inside of the rotary drum 1. A hot air heater (heating means) 23 is provided in the duct 22. The blower fan 20 is configured to be rotated by a fan motor 24.

The operation of the above configuration will be described.
To open the laundry in the drum 1, start operation,
When the drum 1 is rotated at a low speed by the motor 6, the laundry in the drum 1 is lifted and dropped, and water is supplied from the water supply valve 15 while continuing this operation. When a predetermined amount of water is supplied, the supply of water is stopped and washing is continued, and the laundry in the drum 1 is lifted and dropped on the water surface. Thus, the washing process proceeds.

After the washing process, the drain pump 16 is driven to drain the water. If necessary, the drum 1 is rotated at a high speed while the drain pump 16 is driven to perform intermediate dewatering, and the washing process is started. The same operation as the washing process is performed in the rinsing process. In the dehydration process, the drum 1 is driven to rotate at a high speed, and the laundry is centrifugally dehydrated. At this time, when the laundry in the drum 1 is shifted, that is, imbalance occurs, the drum 1
Although the outer tub 3 vibrates, the vibration is not attenuated by the vibration damper 11 and is not transmitted to the laundry machine main body 9.

In the drying process, the drum 1 is rotated at a low speed by the motor 6 as in the washing process.
The laundry inside is lifted and dropped, and at the same time, warm air is circulated in the drum 1 by the blower fan 2114 and the warm air heater 23 to dry the laundry. While continuing this operation,
The heat-exchanged water that has been subjected to heat exchange in the heat exchanger 19 and stored in the outer tank 3 is drained before reaching the drum 1.

[0009]

In such a conventional configuration, when the blower fan 20 breaks down in the drying process, the heat generated by the hot air heater 23 is not blown into the drum 1 and the hot air heater 23 is not blown. Has a problem in that the vicinity of the heater is abnormally overheated.

The present invention solves the above-mentioned conventional problems. When the blowing means is not operating normally, an abnormal display is displayed on the display means, and accurate information is transmitted to the user to prompt the user to take measures. It is an object of the present invention to make it possible to repair abnormally, prevent abnormal overheating by a heating means, eliminate a failure of a component due to abnormal overheating, and facilitate dealing with the failure.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a heating means provided with a water supply means in a rotatable drum contained in an outer tank and provided in a circulation path in the drum. Blowing hot air heated by the blowing means,
Heat exchange of hot air containing moisture in the drum with a heat exchanger,
The operating state of the blowing means is detected by the blowing state detecting means. The control unit controls the operation of the blowing unit and the heating unit, and when the blowing unit is not operating while the heating unit is operating, an error is displayed on the display unit and the operation of the heating unit is stopped. It was done.

Thus, when the blower does not perform the predetermined operation, an abnormality is notified and the heating device is stopped, thereby transmitting accurate information to the user and prompting the user to take measures.
In addition to being able to be repaired at an early stage, abnormal overheating due to the heating means can be prevented, component failure due to abnormal overheating can be eliminated, and troubleshooting can be facilitated.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a drum which is contained in an outer tub and is rotatably disposed, a water supply means for supplying water to the drum, and a hot air supply to the drum. Blowing means for blowing air, heating means provided in a circulation path for blowing air, a heat exchanger for exchanging heat with hot air containing moisture in the drum, and temperature detection for detecting the temperature of the hot air in the heat exchanger Means, display means for displaying operation details, control means for controlling the operation of the blowing means and the heating means, etc., and blowing state detecting means for detecting the operating state of the blowing means, the control means When the blowing means is not operating while the heating means is operating, an abnormality is displayed on the display means and the operation of the heating means is stopped, and the blowing means performs a predetermined operation. If not, an error will be displayed and By stopping the device, accurate information is conveyed to the user to prompt the user to take corrective actions, so that the device can be repaired at an early stage. In addition, abnormal overheating due to the heating means can be prevented, and parts failure due to abnormal overheating can be resolved. And can easily deal with the failure.

According to a second aspect of the present invention, in the first aspect of the present invention, the blowing means comprises a blowing fan and a fan motor for driving the blowing fan, and the blowing state detecting means comprises It is composed of a rotation sensor provided in the motor, and the operation of the blowing means can be determined by the signal of the rotation sensor, so that the abnormality of the blowing means can be detected,
Abnormal heating of parts can be prevented.

According to a third aspect of the present invention, in the first aspect of the present invention, the blower includes a blower fan and a fan motor for driving the blower fan, and the blower state detecting means includes the fan blower. It consists of an input voltage detection circuit of the motor, and the operation of the fan motor can be determined by the presence or absence of the voltage of the input voltage detection circuit of the fan motor. .

According to a fourth aspect of the present invention, in the first aspect of the present invention, the air blowing state detecting means is configured to detect the temperature based on a change in temperature detected by the temperature detecting means. The operation of the air blowing means can be determined depending on whether the temperature change of the temperature detecting means provided during the drying process is small or large, and abnormal heating of parts can be prevented.

[0017] The invention described in claim 5 is the above-mentioned claim 1-
In the invention described in Item 4, the control means displays an abnormality until the commercial power is turned off, cancels the abnormal display when the power is turned on again, and accepts an operation. The display continues until the user notices. Operation can be resumed immediately, except for simple and easy-to-repair factors, such as forgetting to open the water tap.

[0018] The invention described in claim 6 is the above-mentioned claim 1-
4. The invention according to claim 4, further comprising a storage unit, wherein the control unit stores the details of the abnormality. Can be confirmed and the repair can be performed quickly.

The invention described in claim 7 is the above-mentioned claim 1-
In the invention described in Item 4, the notification means is provided, and the control means is configured to generate a notification sound at the same time as the display of the abnormality. Can be performed, and safety against abnormal overheating can be improved.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

(Embodiment 1) As shown in FIG. 2, a water supply valve (water supply means) 15a supplies water for washing into the drum 1 in a washing step, and a water supply valve (water supply means) 15 in a drying step.
b, cooling water is supplied to the heat exchanger 17, and hot air containing humidity is directly heat-exchanged by the cooling water. The temperature sensor (temperature detecting means) 25 detects the temperature of the hot air circulating in the heat exchanger 19, and the temperature of the heat exchange water is detected by the heat exchange water thermistor 26. The drying state in the drum 1 is determined based on these temperatures, and the heating motor 6, the hot air heater 23, and the fan motor 24
Operation control. These controls are determined by a microcomputer in a control circuit in the control device 27.

The control device 27 is constructed as shown in FIG. 1, and the control means 28 is constituted by a microcomputer, and the motor 6, the water supply valve and the power supply means 29 are constituted by power switching means 29 constituted by a bidirectional thyristor or the like. 15a, 15
b, drain pump 16, hot air heater 23, fan motor 2
4 and the like, and sequentially controls a series of steps of washing, rinsing, dehydrating, and drying.

The input setting means 30 is for inputting a required setting course, start of operation and the like by the user, and is input to the control means 28. The display means 31 displays the contents set by the input setting means 30, the operation state, and the like. The rotation number detecting means 32 detects the rotation number of the fan motor 24,
It is input to the control means 28 and plays the role of a ventilation state detecting means.

The fan motor 24 is, as shown in FIG.
A magnet 34 is attached to the shaft 33, and a hall element 36 is attached to the fan motor main body 35, and converts the rotation of the fan motor 24 into an electric pulse signal. The number of rotations is calculated by inputting the pulse signal to the control means 28 and counting it.

The storage means 37 stores data necessary for a series of controls. The notification unit 38 generates a notification sound or a sound in accordance with a signal from the control unit 28. In addition, 39 is a commercial power supply, and 40 is a power switch.

The operation panel comprises input setting means 30 and display means 31, as shown in FIG. Input setting means 30
Is a start / pause switch 30a, a course changeover switch 30b for changing a washing course such as standard or speedy, a washing step, a washing / drying changeover switch 30c for switching between a washing step and a drying step, and a drying step, and drying for individually setting a drying time. A time setting switch 30d, a dehydration time setting switch 30e for individually setting the dehydration time, and a rinsing number setting switch 30 for individually setting the rinsing number.
f, Washing time setting switch 3 for individually setting the washing time
It is composed of 0 g or the like.

The display means 31 includes a course display section 31a for displaying a standard or speedy washing course, a progress display section 31b for displaying the progress of the operation, a remaining time display section 31c for displaying the remaining time until the end of the operation, and drying. A drying time display section 31d for displaying time, a dehydration time display section 31e for displaying dehydration time, and a rinsing number display section 31 for displaying the number of rinsing times.
f, a washing time display section 31g for displaying the washing time, and the like. In the progress display section 31b, the process lamp to be operated is turned on, the process lamp being operated is blinking, and the process end process is turned off.

When the rotation speed detecting means 32 detects that the blower fan 20 is not operating while the hot air heater 23 is operating, the control means 28 displays an abnormality on the display means 31 and The operation is stopped.
At this time, the notification means 38 simultaneously generates a notification sound.

The operation of the above configuration will be described. When the hot air heater 23 operates during the drying process, the control means 2
Numeral 8 operates the water supply valve 15b to supply water while rotating the blower fan 20 by the fan motor 24 to send warm air into the drum 1. Here, if the blower fan 20 does not rotate, for example, for 10 seconds due to a failure of the power switching element for controlling the power to the fan motor 24, there is a risk that the hot air heater 23 may abnormally overheat. The control means 28 makes a display such as "H11" on the remaining time display section 31c instead of a normal numerical display, and stops the operation of the warm air heater 23.

At this time, at the same time, a notification sound is generated by the notification means 38, so that a user who cannot see the display when a problem occurs can be notified of the abnormality by the notification sound. By changing the pattern of the notification sound from that generated during normal button operation, it is easy to understand that an abnormality has occurred. In addition, the notification sound is not limited to a monotonous sound, and is notified by a sound such as "abnormal." May be.

This display is displayed until the commercial power supply 39 is turned off by operating the power switch 40, and when the power is turned on again, the display such as "H11" is canceled and a normal operation is accepted. Thus, the display is continued until the user notices, the cause of the operation stop can be easily determined, and the abnormality can be dealt with promptly. The method of stopping the operation of the hot air heater 23 is the same even when the entire load is stopped by turning off the power.

As for the operation of turning off the power, only the load of the motor 6, the water supply valves 15a and 15b, the drain pump 16, the hot air heater 23, the fan motor 24 and the like is turned off, and the control means 28 continues to be energized. It may be a configuration.

Thus, it is possible to accurately inform the user of the abnormality of the blower fan 20 and to urge the user to cope with the problem, to prevent an accident caused by abnormal overheating, and to repair the abnormality at an early stage.

Further, even when the fan motor 24 is rotated during the washing process or during the operation in which the blower fan 20 is not supposed to be operated, the rotation speed detecting means 3 may be used.
In step 2, an abnormality is detected, an abnormality is displayed, and the operation is stopped.

(Embodiment 2) As shown in FIG. 5, an input voltage detecting means 41 detects an input voltage of the fan motor 24 and constitutes a blowing state detecting means, which is input to a control means 42. . Other configurations are the same as those in the first embodiment.

The operation of the above configuration will be described. For example, when the power supply voltage is not applied to the fan motor 24 due to a failure of the power switching element, the input voltage detecting means 41 detects the power supply voltage and the fan motor 24 does not operate. Consider Thus, similarly to the first embodiment,
An abnormal state can be determined, and the abnormality can be dealt with.

(Embodiment 3) Control means 42 in FIG.
Is configured to detect the air blowing state based on the amount of change in the temperature detected by the temperature sensor 25. Other configurations are the same as those in the first embodiment.

The operation of the above configuration will be described. The output of the temperature sensor 25 of the blown air temperature in the drying process is shown in FIG.
As shown by the solid line. When the blower fan 20 stops operating due to an abnormality, as shown by a broken line in FIG.
The output of No. 5 decreases. When the temperature decreases by a predetermined value or more, the blower fan 20 is determined to be abnormal. In this manner, as in the first embodiment, it is possible to determine an abnormal state and to deal with the abnormality.

(Embodiment 4) Control means 2 of FIG. 1 or FIG.
8 and 42, when an abnormality occurs, a display such as “H11”, which is not a normal numerical display, is displayed on the remaining time display unit 31c, and a code corresponding to the storage unit 38 “H11” is stored. Other configurations are the same as those in the first or second embodiment.

The operation of the above configuration will be described. Even if the power is turned off due to a problem, the data is read from the storage means 38 when the power is turned on again, and the remaining time display section 31c does not display a normal numeral. A display such as "H11" can be displayed, and a repairman or the like can check the details of the abnormality later, so that an appropriate measure can be taken.

Even if the power is turned off due to a problem, even when the power is turned on again, an operation that can be used normally can be performed. Only when special input, storage means 3
Alternatively, the data may be read from 8 and a display such as "H11" may be displayed on the remaining time display section 31c instead of the normal numerical display.

[0042]

As described above, according to the first aspect of the present invention, a drum contained in an outer tank and rotatably disposed, a water supply means for supplying water into the drum, and a water supply means inside the drum. Blowing means for blowing hot air to the air, a heating means provided in a circulation path of the blowing air, a heat exchanger for heat exchange of hot air containing moisture in the drum, and a temperature of the hot air in the heat exchanger. Temperature detecting means for detecting, display means for displaying the operation content, control means for controlling the operation of the blowing means and the heating means, and blowing state detecting means for detecting the operating state of the blowing means, The control means displays an abnormality on the display means and stops the operation of the heating means when the blowing means is not operating while the heating means is operating. When not driving, an error message is displayed and By stopping the heating device, accurate information is conveyed to the user to urge the user to take corrective actions, so that the device can be repaired at an early stage, and abnormal overheating due to the heating means can be prevented. Can be eliminated, and the handling of the failure can be facilitated.

According to the second aspect of the present invention, the blowing means includes a blowing fan and a fan motor for driving the blowing fan, and the blowing state detecting means includes a rotation sensor provided on the fan motor. Since the operation of the blower can be determined based on the signal of the rotation sensor, an abnormality of the blower can be detected, and abnormal heating of parts can be prevented.

According to the third aspect of the present invention, the blowing means includes a blowing fan and a fan motor for driving the blowing fan, and the blowing state detecting means includes an input voltage detecting circuit for the fan motor. Since the operation of the fan motor can be determined based on the presence or absence of the voltage of the input voltage detection circuit of the fan motor, the abnormality of the blower can be detected, and the abnormal heating of the parts can be prevented.

According to the fourth aspect of the present invention, since the air blowing state detecting means is configured to detect the amount of change in the temperature detected by the temperature detecting means, the temperature of the temperature detecting means provided in the circulation path is controlled. The operation of the blower can be determined based on whether the change is small or large during the drying process, and abnormal heating of the component can be prevented. Further, since the temperature detection means can perform both the detection of the finish of the drying process and the detection of the air blowing operation state, the cost is reduced.

According to the fifth aspect of the present invention, the control means displays an error until the commercial power is turned off, and cancels the error display and accepts the operation when the power is turned on again. The operation can be resumed immediately after removing the simple and easy-to-repair factors such as forgetting to open the water tap.

According to the sixth aspect of the present invention, since the storage means is provided, and the control means stores the details of the abnormality, the control is stopped by storing the details of the abnormality in the storage means. Later, the contents of the abnormality can be confirmed by the storage means, and the restoration can be quickly performed.

According to the seventh aspect of the present invention, the notifying means is provided, and the control means is configured to generate an alarm sound simultaneously with the display of the abnormality. In addition, it is possible to quickly cope with the abnormality and improve safety against abnormal overheating.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram of a laundry device according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view of the laundry device.

FIG. 3 is a partially cutaway side view of a fan motor of the laundry device.

FIG. 4 is an enlarged front view of an operation panel of the laundry device.

FIG. 5 is a block circuit diagram of a laundry device according to a second embodiment of the present invention.

FIG. 6 is a graph showing air temperature characteristics during a drying process of a laundry device according to a third embodiment of the present invention.

FIG. 7 is a partially cutaway perspective view of a conventional laundry device.

FIG. 8 is a sectional view of the laundry device.

[Explanation of symbols]

 Reference Signs List 1 drum 3 outer tank 15a water supply valve (water supply means) 15b water supply valve (water supply means) 19 heat exchanger 20 blower fan (blower means) 21 circulation path 23 hot air heater (heating means) 25 temperature detection means 28 control means 31 display Means 32 Number of rotations detection means (Blow state detection means)

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI D06F 58/02 D06F 58/02 G Q

Claims (7)

[Claims] 1. A drum included in an outer tank and rotatably disposed, a water supply means for supplying water to the drum, a blowing means for blowing hot air into the drum, and a heating means provided in a circulation path of the blowing air. Means, a heat exchanger for exchanging hot air containing moisture in the drum, temperature detecting means for detecting a temperature of the hot air in the heat exchanger, display means for displaying operation details, and Control means for controlling the operation of the means and the heating means, etc., and a blowing state detecting means for detecting an operating state of the blowing means, wherein the controlling means operates the blowing means while the heating means is operating. If not, an abnormality is displayed on the display means, and the operation of the heating means is stopped. 2. The laundry apparatus according to claim 1, wherein the blowing means comprises a blowing fan and a fan motor for driving the blowing fan, and the blowing state detecting means comprises a rotation sensor provided on the fan motor. 3. The laundry apparatus according to claim 1, wherein the blowing means comprises a blowing fan and a fan motor for driving the blowing fan, and the blowing state detecting means comprises an input voltage detecting circuit of the fan motor. 4. The air blow state detecting means is configured to detect the temperature based on a change in temperature detected by the temperature detecting means.
Laundry equipment. 5. The laundry apparatus according to claim 1, wherein the control means displays an error until the commercial power is turned off, and cancels the error display and accepts the operation when the power is turned on again. . 6. The laundry apparatus according to claim 1, further comprising a storage unit, wherein the control unit stores the content of the abnormality. 7. The laundry apparatus according to claim 1, further comprising a notification unit, wherein the control unit generates a notification sound simultaneously with the display of the abnormality.